472633381 has 6 divisors (see below), whose sum is σ = 519506246. Its totient is φ = 429666600.

The previous prime is 472633367. The next prime is 472633393. The reversal of 472633381 is 183336274.

It can be written as a sum of positive squares in only one way, i.e., 429940225 + 42693156 = 20735^2 + 6534^2 .

It is not a de Polignac number, because 472633381 - 2²⁵ = 439078949 is a prime.

It is a super-2 number, since 2×472633381² = 446764625670982322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 472633381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472633321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1952910 + ... + 1953151.

Almost surely, 2^472633381 is an apocalyptic number.

It is an amenable number.

472633381 is a deficient number, since it is larger than the sum of its proper divisors (46872865).

472633381 is a wasteful number, since it uses less digits than its factorization.

472633381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906083 (or 3906072 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 472633381 is about 21740.1329572751. The cubic root of 472633381 is about 778.9473972774.

The spelling of 472633381 in words is "four hundred seventy-two million, six hundred thirty-three thousand, three hundred eighty-one".