633893420 has 24 divisors (see below), whose sum is σ = 1332044784. Its totient is φ = 253391936.

The previous prime is 633893419. The next prime is 633893431. The reversal of 633893420 is 24398336.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23834 + ... + 42846.

It is an arithmetic number, because the mean of its divisors is an integer number (55501866).

Almost surely, 2^633893420 is an apocalyptic number.

It is an amenable number.

633893420 is an abundant number, since it is smaller than the sum of its proper divisors (698151364).

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

633893420 is a wasteful number, since it uses less digits than its factorization.

633893420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20689 (or 20687 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 633893420 is about 25177.2401188057. The cubic root of 633893420 is about 859.0242313177.

The spelling of 633893420 in words is "six hundred thirty-three million, eight hundred ninety-three thousand, four hundred twenty".