938396840 has 32 divisors (see below), whose sum is σ = 2116747080. Its totient is φ = 374406912.

The previous prime is 938396831. The next prime is 938396867. The reversal of 938396840 is 48693839.

It can be written as a sum of positive squares in 4 ways, for example, as 932569444 + 5827396 = 30538^2 + 2414^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13667 + ... + 45426.

Almost surely, 2^938396840 is an apocalyptic number.

It is an amenable number.

938396840 is an abundant number, since it is smaller than the sum of its proper divisors (1178350240).

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

938396840 is a wasteful number, since it uses less digits than its factorization.

938396840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59501 (or 59497 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 938396840 is about 30633.2636197974. The cubic root of 938396840 is about 979.0289005955.

The spelling of 938396840 in words is "nine hundred thirty-eight million, three hundred ninety-six thousand, eight hundred forty".