402623560 has 16 divisors (see below), whose sum is σ = 905903100. Its totient is φ = 161049408.

The previous prime is 402623539. The next prime is 402623587. The reversal of 402623560 is 65326204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 373958244 + 28665316 = 19338^2 + 5354^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5032755 + ... + 5032834.

Almost surely, 2^402623560 is an apocalyptic number.

402623560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402623560 is an abundant number, since it is smaller than the sum of its proper divisors (503279540).

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

402623560 is a wasteful number, since it uses less digits than its factorization.

402623560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10065600 (or 10065596 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 402623560 is about 20065.4818033358. The cubic root of 402623560 is about 738.4136702523.

Adding to 402623560 its reverse (65326204), we get a palindrome (467949764).

The spelling of 402623560 in words is "four hundred two million, six hundred twenty-three thousand, five hundred sixty".