402151072 has 24 divisors (see below), whose sum is σ = 795766356. Its totient is φ = 200051712.

The previous prime is 402151051. The next prime is 402151081. The reversal of 402151072 is 270151204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 256128016 + 146023056 = 16004^2 + 12084^2 .

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, 25593 + ... + 38200.

Almost surely, 2^402151072 is an apocalyptic number.

It is an amenable number.

402151072 is a deficient number, since it is larger than the sum of its proper divisors (393615284).

402151072 is a wasteful number, since it uses less digits than its factorization.

402151072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64000 (or 63992 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 402151072 is about 20053.7046951430. The cubic root of 402151072 is about 738.1247087182.

The spelling of 402151072 in words is "four hundred two million, one hundred fifty-one thousand, seventy-two".