633209442 has 16 divisors (see below), whose sum is σ = 1269613632. Its totient is φ = 210537360.

The previous prime is 633209431. The next prime is 633209459. The reversal of 633209442 is 244902336.

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, 130534 + ... + 135297.

It is an arithmetic number, because the mean of its divisors is an integer number (79350852).

Almost surely, 2^633209442 is an apocalyptic number.

633209442 is an abundant number, since it is smaller than the sum of its proper divisors (636404190).

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

633209442 is a wasteful number, since it uses less digits than its factorization.

633209442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266233.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 633209442 is about 25163.6531926507. The cubic root of 633209442 is about 858.7151545815.

The spelling of 633209442 in words is "six hundred thirty-three million, two hundred nine thousand, four hundred forty-two".