402787974 has 8 divisors (see below), whose sum is σ = 805575960. Its totient is φ = 134262656.

The previous prime is 402787963. The next prime is 402787981. The reversal of 402787974 is 479787204.

It is a sphenic number, since it is the product of 3 distinct primes.

402787974 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33565659 + ... + 33565670.

It is an arithmetic number, because the mean of its divisors is an integer number (100696995).

Almost surely, 2^402787974 is an apocalyptic number.

402787974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402787974 is a wasteful number, since it uses less digits than its factorization.

402787974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67131334.

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 402787974 is about 20069.5783214297. The cubic root of 402787974 is about 738.5141686131.

The spelling of 402787974 in words is "four hundred two million, seven hundred eighty-seven thousand, nine hundred seventy-four".