633869442 has 16 divisors (see below), whose sum is σ = 1408598880. Its totient is φ = 211289796.

The previous prime is 633869441. The next prime is 633869447. The reversal of 633869442 is 244968336.

633869442 is a `hidden beast` number, since 633 + 8 + 6 + 9 + 4 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (633869441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5869108 + ... + 5869215.

It is an arithmetic number, because the mean of its divisors is an integer number (88037430).

Almost surely, 2^633869442 is an apocalyptic number.

633869442 is an abundant number, since it is smaller than the sum of its proper divisors (774729438).

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

633869442 is a wasteful number, since it uses less digits than its factorization.

633869442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738334 (or 11738328 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 633869442 is about 25176.7639302592. The cubic root of 633869442 is about 859.0133998740.

The spelling of 633869442 in words is "six hundred thirty-three million, eight hundred sixty-nine thousand, four hundred forty-two".