38173240440 has 64 divisors (see below), whose sum is σ = 127244138400. Its totient is φ = 10179530496.

The previous prime is 38173240439. The next prime is 38173240451. The reversal of 38173240440 is 4404237183.

38173240440 is a `hidden beast` number, since 3 + 8 + 173 + 2 + 40 + 440 = 666.

38173240440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38173240395 and 38173240404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17671717 + ... + 17673876.

Almost surely, 2^38173240440 is an apocalyptic number.

38173240440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38173240440 is an abundant number, since it is smaller than the sum of its proper divisors (89070897960).

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

38173240440 is a wasteful number, since it uses less digits than its factorization.

38173240440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35345613 (or 35345603 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 38173240440 in words is "thirty-eight billion, one hundred seventy-three million, two hundred forty thousand, four hundred forty".