38906361140 has 24 divisors (see below), whose sum is σ = 84520716840. Its totient is φ = 15025904768.

The previous prime is 38906361079. The next prime is 38906361217. The reversal of 38906361140 is 4116360983.

It can be written as a sum of positive squares in 4 ways, for example, as 250082596 + 38656278544 = 15814^2 + 196612^2 .

It is a super-2 number, since 2×38906361140² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33539387 + ... + 33540546.

It is an arithmetic number, because the mean of its divisors is an integer number (3521696535).

Almost surely, 2^38906361140 is an apocalyptic number.

It is an amenable number.

38906361140 is an abundant number, since it is smaller than the sum of its proper divisors (45614355700).

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

38906361140 is a wasteful number, since it uses less digits than its factorization.

38906361140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67079971 (or 67079969 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 38906361140 in words is "thirty-eight billion, nine hundred six million, three hundred sixty-one thousand, one hundred forty".