633000381 has 16 divisors (see below), whose sum is σ = 911863680. Its totient is φ = 388278720.

The previous prime is 633000373. The next prime is 633000383. The reversal of 633000381 is 183000336.

It is not a de Polignac number, because 633000381 - 2³ = 633000373 is a prime.

It is a super-2 number, since 2×633000381² = 801378964692290322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633000383) 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, 13966 + ... + 38223.

It is an arithmetic number, because the mean of its divisors is an integer number (56991480).

Almost surely, 2^633000381 is an apocalyptic number.

It is an amenable number.

633000381 is a deficient number, since it is larger than the sum of its proper divisors (278863299).

633000381 is a wasteful number, since it uses less digits than its factorization.

633000381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52516.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 633000381 is about 25159.4988225123. The cubic root of 633000381 is about 858.6206394559.

The spelling of 633000381 in words is "six hundred thirty-three million, three hundred eighty-one", and thus it is an aban number.