43872740 has 12 divisors (see below), whose sum is σ = 92132796. Its totient is φ = 17549088.

The previous prime is 43872701. The next prime is 43872769. The reversal of 43872740 is 4727834.

It can be written as a sum of positive squares in 2 ways, for example, as 10510564 + 33362176 = 3242^2 + 5776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43872740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096799 + ... + 1096838.

It is an arithmetic number, because the mean of its divisors is an integer number (7677733).

Almost surely, 2^43872740 is an apocalyptic number.

It is an amenable number.

43872740 is an abundant number, since it is smaller than the sum of its proper divisors (48260056).

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

43872740 is a wasteful number, since it uses less digits than its factorization.

43872740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193646 (or 2193644 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 43872740 is about 6623.6500511425. The cubic root of 43872740 is about 352.6941471950.

The spelling of 43872740 in words is "forty-three million, eight hundred seventy-two thousand, seven hundred forty".