39940034930 has 16 divisors (see below), whose sum is σ = 71936996184. Its totient is φ = 15966028800.

The previous prime is 39940034921. The next prime is 39940034933. The reversal of 39940034930 is 3943004993.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38782606489 + 1157428441 = 196933^2 + 34021^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39940034933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231337 + ... + 1263356.

Almost surely, 2^39940034930 is an apocalyptic number.

39940034930 is a deficient number, since it is larger than the sum of its proper divisors (31996961254).

39940034930 is a wasteful number, since it uses less digits than its factorization.

39940034930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496301.

The product of its (nonzero) digits is 314928, while the sum is 44.

The spelling of 39940034930 in words is "thirty-nine billion, nine hundred forty million, thirty-four thousand, nine hundred thirty".