402653172 has 48 divisors (see below), whose sum is σ = 971984384. Its totient is φ = 129600000.

The previous prime is 402653171. The next prime is 402653189. The reversal of 402653172 is 271356204.

It is a super-3 number, since 3×402653172³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402653171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222672 + ... + 224472.

Almost surely, 2^402653172 is an apocalyptic number.

It is an amenable number.

402653172 is an abundant number, since it is smaller than the sum of its proper divisors (569331212).

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

402653172 is a wasteful number, since it uses less digits than its factorization.

402653172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 402653172 is about 20066.2196738698. The cubic root of 402653172 is about 738.4317726617.

The spelling of 402653172 in words is "four hundred two million, six hundred fifty-three thousand, one hundred seventy-two".