662438938 has 96 divisors (see below), whose sum is σ = 1263375360. Its totient is φ = 259096320.

The previous prime is 662438923. The next prime is 662438941. The reversal of 662438938 is 839834266.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 662438891 and 662438900.

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 47 ways as a sum of consecutive naturals, for example, 6431395 + ... + 6431497.

It is an arithmetic number, because the mean of its divisors is an integer number (13160160).

Almost surely, 2^662438938 is an apocalyptic number.

662438938 is a deficient number, since it is larger than the sum of its proper divisors (600936422).

662438938 is a wasteful number, since it uses less digits than its factorization.

662438938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 245 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The square root of 662438938 is about 25737.8891519876. The cubic root of 662438938 is about 871.7299168121.

The spelling of 662438938 in words is "six hundred sixty-two million, four hundred thirty-eight thousand, nine hundred thirty-eight".