938509291040 has 24 divisors (see below), whose sum is σ = 2217228200460. Its totient is φ = 375403716352.

The previous prime is 938509291039. The next prime is 938509291043. The reversal of 938509291040 is 40192905839.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 877541779984 + 60967511056 = 936772^2 + 246916^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 938509291040.

It is not an unprimeable number, because it can be changed into a prime (938509291043) 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, 2932841375 + ... + 2932841694.

Almost surely, 2^938509291040 is an apocalyptic number.

It is an amenable number.

938509291040 is an abundant number, since it is smaller than the sum of its proper divisors (1278718909420).

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

938509291040 is a wasteful number, since it uses less digits than its factorization.

938509291040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865683084 (or 5865683076 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 938509291040 in words is "nine hundred thirty-eight billion, five hundred nine million, two hundred ninety-one thousand, forty".