939939240240 has 480 divisors, whose sum is σ = 4238274733056. Its totient is φ = 180287907840.

The previous prime is 939939240239. The next prime is 939939240241. The reversal of 939939240240 is 42042939939.

939939240240 is a `hidden beast` number, since 9 + 3 + 9 + 9 + 392 + 4 + 0 + 240 = 666.

It is an interprime number because it is at equal distance from previous prime (939939240239) and next prime (939939240241).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (939939240241) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68637 + ... + 1372803.

Almost surely, 2^939939240240 is an apocalyptic number.

939939240240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 939939240240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2119137366528).

939939240240 is an abundant number, since it is smaller than the sum of its proper divisors (3298335492816).

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

939939240240 is a wasteful number, since it uses less digits than its factorization.

939939240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304217 (or 1304208 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 939939240240 in words is "nine hundred thirty-nine billion, nine hundred thirty-nine million, two hundred forty thousand, two hundred forty".