402947012 has 12 divisors (see below), whose sum is σ = 759400236. Its totient is φ = 185975520.

The previous prime is 402947011. The next prime is 402947033. The reversal of 402947012 is 210749204.

It can be written as a sum of positive squares in 2 ways, for example, as 227225476 + 175721536 = 15074^2 + 13256^2 .

It is not an unprimeable number, because it can be changed into a prime (402947011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3874439 + ... + 3874542.

It is an arithmetic number, because the mean of its divisors is an integer number (63283353).

Almost surely, 2^402947012 is an apocalyptic number.

It is an amenable number.

402947012 is a deficient number, since it is larger than the sum of its proper divisors (356453224).

402947012 is a wasteful number, since it uses less digits than its factorization.

402947012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7748998 (or 7748996 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 402947012 is about 20073.5400963557. The cubic root of 402947012 is about 738.6113548657.

The spelling of 402947012 in words is "four hundred two million, nine hundred forty-seven thousand, twelve".