938780634 has 32 divisors (see below), whose sum is σ = 2118882240. Its totient is φ = 274668800.

The previous prime is 938780603. The next prime is 938780639. The reversal of 938780634 is 436087839.

It is not an unprimeable number, because it can be changed into a prime (938780639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243327 + ... + 247154.

It is an arithmetic number, because the mean of its divisors is an integer number (66215070).

Almost surely, 2^938780634 is an apocalyptic number.

938780634 is an abundant number, since it is smaller than the sum of its proper divisors (1180101606).

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

938780634 is a wasteful number, since it uses less digits than its factorization.

938780634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490526.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 938780634 is about 30639.5273135863. The cubic root of 938780634 is about 979.1623530924.

The spelling of 938780634 in words is "nine hundred thirty-eight million, seven hundred eighty thousand, six hundred thirty-four".