402798880 has 96 divisors (see below), whose sum is σ = 1051626240. Its totient is φ = 144568320.

The previous prime is 402798859. The next prime is 402798911. The reversal of 402798880 is 88897204.

It is a self number, because there is not a number n which added to its sum of digits gives 402798880.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137592 + ... + 140488.

It is an arithmetic number, because the mean of its divisors is an integer number (10954440).

Almost surely, 2^402798880 is an apocalyptic number.

402798880 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 402798880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525813120).

402798880 is an abundant number, since it is smaller than the sum of its proper divisors (648827360).

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

402798880 is a wasteful number, since it uses less digits than its factorization.

402798880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 402798880 is about 20069.8500243524. The cubic root of 402798880 is about 738.5208339584.

The spelling of 402798880 in words is "four hundred two million, seven hundred ninety-eight thousand, eight hundred eighty".