402980460 has 96 divisors (see below), whose sum is σ = 1146835200. Its totient is φ = 105719040.

The previous prime is 402980453. The next prime is 402980471. The reversal of 402980460 is 64089204.

It is a super-2 number, since 2×402980460² = 324786502283623200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1759626 + ... + 1759854.

It is an arithmetic number, because the mean of its divisors is an integer number (11946200).

Almost surely, 2^402980460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402980460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573417600).

402980460 is an abundant number, since it is smaller than the sum of its proper divisors (743854740).

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

402980460 is a wasteful number, since it uses less digits than its factorization.

402980460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 402980460 is about 20074.3732156200. The cubic root of 402980460 is about 738.6317912906.

The spelling of 402980460 in words is "four hundred two million, nine hundred eighty thousand, four hundred sixty".