39930304194 has 72 divisors (see below), whose sum is σ = 95968732860. Its totient is φ = 11989010880.

The previous prime is 39930304187. The next prime is 39930304229. The reversal of 39930304194 is 49140303993.

It can be written as a sum of positive squares in 2 ways, for example, as 36823691025 + 3106613169 = 191895^2 + 55737^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 153304 + ... + 321500.

Almost surely, 2^39930304194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39930304194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47984366430).

39930304194 is an abundant number, since it is smaller than the sum of its proper divisors (56038428666).

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

39930304194 is a wasteful number, since it uses less digits than its factorization.

39930304194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168336 (or 168322 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The spelling of 39930304194 in words is "thirty-nine billion, nine hundred thirty million, three hundred four thousand, one hundred ninety-four".