938140828 has 12 divisors (see below), whose sum is σ = 1669573080. Its totient is φ = 461119952.

The previous prime is 938140811. The next prime is 938140829. The reversal of 938140828 is 828041839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938140829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987351 + ... + 1987822.

It is an arithmetic number, because the mean of its divisors is an integer number (139131090).

Almost surely, 2^938140828 is an apocalyptic number.

It is an amenable number.

938140828 is a deficient number, since it is larger than the sum of its proper divisors (731432252).

938140828 is a wasteful number, since it uses less digits than its factorization.

938140828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975236 (or 3975234 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 938140828 is about 30629.0846745377. The cubic root of 938140828 is about 978.9398601053.

The spelling of 938140828 in words is "nine hundred thirty-eight million, one hundred forty thousand, eight hundred twenty-eight".