633243996 has 72 divisors (see below), whose sum is σ = 1995686784. Its totient is φ = 164478240.

The previous prime is 633243983. The next prime is 633243997. The reversal of 633243996 is 699342336.

633243996 is a `hidden beast` number, since 633 + 2 + 4 + 3 + 9 + 9 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633243997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111450 + ... + 116993.

It is an arithmetic number, because the mean of its divisors is an integer number (27717872).

Almost surely, 2^633243996 is an apocalyptic number.

633243996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

633243996 is an abundant number, since it is smaller than the sum of its proper divisors (1362442788).

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

633243996 is a wasteful number, since it uses less digits than its factorization.

633243996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228471 (or 228466 counting only the distinct ones).

The product of its digits is 629856, while the sum is 45.

The square root of 633243996 is about 25164.3397688078. The cubic root of 633243996 is about 858.7307742179.

The spelling of 633243996 in words is "six hundred thirty-three million, two hundred forty-three thousand, nine hundred ninety-six".