1430520 has 128 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 299520.

The previous prime is 1430503. The next prime is 1430521. The reversal of 1430520 is 250341.

Added to its reverse (250341) it gives a triangular number (1680861 = T₁₈₃₃).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1430520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10855 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2^1430520 is an apocalyptic number.

1430520 is a gapful number since it is divisible by the number (10) 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 1430520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661120).

1430520 is an abundant number, since it is smaller than the sum of its proper divisors (3891720).

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

1430520 is a wasteful number, since it uses less digits than its factorization.

1430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1430520 is about 1196.0434774706. The cubic root of 1430520 is about 112.6759715170.

Adding to 1430520 its reverse (250341), we get a palindrome (1680861).

The spelling of 1430520 in words is "one million, four hundred thirty thousand, five hundred twenty".