435240 has 128 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 103680.

The previous prime is 435223. The next prime is 435247. The reversal of 435240 is 42534.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (435247) by changing a digit.

435240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14025 + ... + 14055.

It is an arithmetic number, because the mean of its divisors is an integer number (12600).

2⁴³⁵²⁴⁰ is an apocalyptic number.

435240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 435240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806400).

435240 is an abundant number, since it is smaller than the sum of its proper divisors (1177560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

435240 is a wasteful number, since it uses less digits than its factorization.

435240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 435240 is about 659.7272163554. The cubic root of 435240 is about 75.7837806396.

Adding to 435240 its reverse (42534), we get a palindrome (477774).

The spelling of 435240 in words is "four hundred thirty-five thousand, two hundred forty".