633680490 has 32 divisors (see below), whose sum is σ = 1524298176. Its totient is φ = 168596480.

The previous prime is 633680477. The next prime is 633680497. The reversal of 633680490 is 94086336.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (633680497) 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, 10551 + ... + 37130.

It is an arithmetic number, because the mean of its divisors is an integer number (47634318).

Almost surely, 2^633680490 is an apocalyptic number.

633680490 is an abundant number, since it is smaller than the sum of its proper divisors (890617686).

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

633680490 is a wasteful number, since it uses less digits than its factorization.

633680490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48134.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 633680490 is about 25173.0111428887. The cubic root of 633680490 is about 858.9280361172.

The spelling of 633680490 in words is "six hundred thirty-three million, six hundred eighty thousand, four hundred ninety".