633872052 has 54 divisors (see below), whose sum is σ = 1761204354. Its totient is φ = 192081120.

The previous prime is 633872039. The next prime is 633872069. The reversal of 633872052 is 250278336.

It can be written as a sum of positive squares in only one way, i.e., 530565156 + 103306896 = 23034^2 + 10164^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 633871998 and 633872016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 68403 + ... + 77114.

Almost surely, 2^633872052 is an apocalyptic number.

It is an amenable number.

633872052 is an abundant number, since it is smaller than the sum of its proper divisors (1127332302).

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

633872052 is a wasteful number, since it uses less digits than its factorization.

633872052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145549 (or 145533 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 633872052 is about 25176.8157637140. The cubic root of 633872052 is about 859.0145788875.

The spelling of 633872052 in words is "six hundred thirty-three million, eight hundred seventy-two thousand, fifty-two".