40200424 has 32 divisors (see below), whose sum is σ = 83060640. Its totient is φ = 18088000.

The previous prime is 40200421. The next prime is 40200437. The reversal of 40200424 is 42400204.

It is a junction number, because it is equal to n+sod(n) for n = 40200398 and 40200407.

It is not an unprimeable number, because it can be changed into a prime (40200421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6627 + ... + 11149.

It is an arithmetic number, because the mean of its divisors is an integer number (2595645).

Almost surely, 2^40200424 is an apocalyptic number.

40200424 is a gapful number since it is divisible by the number (44) 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 40200424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41530320).

40200424 is an abundant number, since it is smaller than the sum of its proper divisors (42860216).

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

40200424 is a wasteful number, since it uses less digits than its factorization.

40200424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641 (or 4637 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 40200424 is about 6340.3804302266. The cubic root of 40200424 is about 342.5654383285.

Adding to 40200424 its reverse (42400204), we get a palindrome (82600628).

The spelling of 40200424 in words is "forty million, two hundred thousand, four hundred twenty-four".