39400942194 has 48 divisors (see below), whose sum is σ = 90502696440. Its totient is φ = 12345722880.

The previous prime is 39400942169. The next prime is 39400942199. The reversal of 39400942194 is 49124900493.

39400942194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37475926569 + 1925015625 = 193587^2 + 43875^2 .

It is not an unprimeable number, because it can be changed into a prime (39400942199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167974 + ... + 327134.

Almost surely, 2^39400942194 is an apocalyptic number.

39400942194 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39400942194 is an abundant number, since it is smaller than the sum of its proper divisors (51101754246).

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

39400942194 is a wasteful number, since it uses less digits than its factorization.

39400942194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159995 (or 159992 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 39400942194 in words is "thirty-nine billion, four hundred million, nine hundred forty-two thousand, one hundred ninety-four".