94138939440 has 240 divisors, whose sum is σ = 389107887168. Its totient is φ = 19862267904.

The previous prime is 94138939397. The next prime is 94138939451. The reversal of 94138939440 is 4493983149.

94138939440 is a `hidden beast` number, since 94 + 1 + 3 + 89 + 39 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 652879 + ... + 783918.

Almost surely, 2^94138939440 is an apocalyptic number.

94138939440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

94138939440 is an abundant number, since it is smaller than the sum of its proper divisors (294968947728).

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

94138939440 is a wasteful number, since it uses less digits than its factorization.

94138939440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436836 (or 1436827 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 94138939440 in words is "ninety-four billion, one hundred thirty-eight million, nine hundred thirty-nine thousand, four hundred forty".