939039438 has 64 divisors (see below), whose sum is σ = 2029294080. Its totient is φ = 288617472.

The previous prime is 939039433. The next prime is 939039449. The reversal of 939039438 is 834930939.

It is a super-2 number, since 2×939039438² = 1763590132238711688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939039433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2138823 + ... + 2139261.

It is an arithmetic number, because the mean of its divisors is an integer number (31707720).

Almost surely, 2^939039438 is an apocalyptic number.

939039438 is an abundant number, since it is smaller than the sum of its proper divisors (1090254642).

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

939039438 is a wasteful number, since it uses less digits than its factorization.

939039438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 939039438 is about 30643.7503905772. The cubic root of 939039438 is about 979.2523236497.

It can be divided in two parts, 9390 and 39438, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 939039438 in words is "nine hundred thirty-nine million, thirty-nine thousand, four hundred thirty-eight".