938442790 has 24 divisors (see below), whose sum is σ = 1718376480. Its totient is φ = 369001104.

The previous prime is 938442787. The next prime is 938442833. The reversal of 938442790 is 97244839.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 938442790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21331 + ... + 48289.

It is an arithmetic number, because the mean of its divisors is an integer number (71599020).

Almost surely, 2^938442790 is an apocalyptic number.

938442790 is a deficient number, since it is larger than the sum of its proper divisors (779933690).

938442790 is a wasteful number, since it uses less digits than its factorization.

938442790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27084 (or 27025 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 938442790 is about 30634.0136123231. The cubic root of 938442790 is about 979.0448802045.

The spelling of 938442790 in words is "nine hundred thirty-eight million, four hundred forty-two thousand, seven hundred ninety".