442993698 has 40 divisors (see below), whose sum is σ = 1134441792. Its totient is φ = 126569304.

The previous prime is 442993679. The next prime is 442993723. The reversal of 442993698 is 896399244.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 19 ways as a sum of consecutive naturals, for example, 194190 + ... + 196457.

Almost surely, 2^442993698 is an apocalyptic number.

442993698 is an abundant number, since it is smaller than the sum of its proper divisors (691448094).

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

442993698 is a wasteful number, since it uses less digits than its factorization.

442993698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390668 (or 390659 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 442993698 is about 21047.4154707888. The cubic root of 442993698 is about 762.3115782032.

The spelling of 442993698 in words is "four hundred forty-two million, nine hundred ninety-three thousand, six hundred ninety-eight".