402036880 has 40 divisors (see below), whose sum is σ = 1068270912. Its totient is φ = 137841024.

The previous prime is 402036847. The next prime is 402036883. The reversal of 402036880 is 88630204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (402036883) 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, 358402 + ... + 359521.

Almost surely, 2^402036880 is an apocalyptic number.

402036880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402036880 is an abundant number, since it is smaller than the sum of its proper divisors (666234032).

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

402036880 is a wasteful number, since it uses less digits than its factorization.

402036880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717943 (or 717937 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 402036880 is about 20050.8573382786. The cubic root of 402036880 is about 738.0548378647.

The spelling of 402036880 in words is "four hundred two million, thirty-six thousand, eight hundred eighty".