402238992 has 40 divisors (see below), whose sum is σ = 1039862016. Its totient is φ = 133983616.

The previous prime is 402238943. The next prime is 402239017. The reversal of 402238992 is 299832204.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 402238992.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104038 + ... + 107834.

Almost surely, 2^402238992 is an apocalyptic number.

It is an amenable number.

402238992 is an abundant number, since it is smaller than the sum of its proper divisors (637623024).

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

402238992 is a wasteful number, since it uses less digits than its factorization.

402238992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015 (or 6009 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 402238992 is about 20055.8966890040. The cubic root of 402238992 is about 738.1784954667.

The spelling of 402238992 in words is "four hundred two million, two hundred thirty-eight thousand, nine hundred ninety-two".