38890069040 has 40 divisors (see below), whose sum is σ = 95738202720. Its totient is φ = 14640966656.

The previous prime is 38890069033. The next prime is 38890069063. The reversal of 38890069040 is 4096009883.

It is a tau number, because it is divible by the number of its divisors (40).

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, 14296460 + ... + 14299179.

It is an arithmetic number, because the mean of its divisors is an integer number (2393455068).

Almost surely, 2^38890069040 is an apocalyptic number.

It is an amenable number.

38890069040 is an abundant number, since it is smaller than the sum of its proper divisors (56848133680).

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

38890069040 is a wasteful number, since it uses less digits than its factorization.

38890069040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28595669 (or 28595663 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 38890069040 in words is "thirty-eight billion, eight hundred ninety million, sixty-nine thousand, forty".