43990834734 has 48 divisors (see below), whose sum is σ = 118832388480. Its totient is φ = 11426190480.

The previous prime is 43990834663. The next prime is 43990834759. The reversal of 43990834734 is 43743809934.

43990834734 is a `hidden beast` number, since 4 + 3 + 9 + 90 + 83 + 473 + 4 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15868324 + ... + 15871095.

It is an arithmetic number, because the mean of its divisors is an integer number (2475674760).

Almost surely, 2^43990834734 is an apocalyptic number.

43990834734 is an abundant number, since it is smaller than the sum of its proper divisors (74841553746).

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

43990834734 is a wasteful number, since it uses less digits than its factorization.

43990834734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31739445 (or 31739442 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 43990834734 in words is "forty-three billion, nine hundred ninety million, eight hundred thirty-four thousand, seven hundred thirty-four".