38438040190 has 32 divisors (see below), whose sum is σ = 75869454816. Its totient is φ = 13905039360.

The previous prime is 38438040181. The next prime is 38438040217. The reversal of 38438040190 is 9104083483.

It is a super-2 number, since 2×38438040190² (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 15 ways as a sum of consecutive naturals, for example, 884047 + ... + 926506.

It is an arithmetic number, because the mean of its divisors is an integer number (2370920463).

Almost surely, 2^38438040190 is an apocalyptic number.

38438040190 is a deficient number, since it is larger than the sum of its proper divisors (37431414626).

38438040190 is a wasteful number, since it uses less digits than its factorization.

38438040190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810764.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 38438040190 in words is "thirty-eight billion, four hundred thirty-eight million, forty thousand, one hundred ninety".