38994924072 has 32 divisors (see below), whose sum is σ = 104986334880. Its totient is φ = 11998438080.

The previous prime is 38994924061. The next prime is 38994924077. The reversal of 38994924072 is 27042949983.

It is a super-2 number, since 2×38994924072² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38994924077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62491554 + ... + 62492177.

It is an arithmetic number, because the mean of its divisors is an integer number (3280822965).

Almost surely, 2^38994924072 is an apocalyptic number.

It is an amenable number.

38994924072 is an abundant number, since it is smaller than the sum of its proper divisors (65991410808).

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

38994924072 is a wasteful number, since it uses less digits than its factorization.

38994924072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124983753 (or 124983749 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 38994924072 in words is "thirty-eight billion, nine hundred ninety-four million, nine hundred twenty-four thousand, seventy-two".