38901940 has 48 divisors (see below), whose sum is σ = 101856384. Its totient is φ = 12124800.

The previous prime is 38901893. The next prime is 38901959. The reversal of 38901940 is 4910983.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38901896 and 38901905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11091 + ... + 14170.

It is an arithmetic number, because the mean of its divisors is an integer number (2122008).

Almost surely, 2^38901940 is an apocalyptic number.

It is an amenable number.

38901940 is an abundant number, since it is smaller than the sum of its proper divisors (62954444).

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

38901940 is a wasteful number, since it uses less digits than its factorization.

38901940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25288 (or 25286 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 38901940 is about 6237.1419736928. The cubic root of 38901940 is about 338.8366816568.

The spelling of 38901940 in words is "thirty-eight million, nine hundred one thousand, nine hundred forty".