43745672 has 8 divisors (see below), whose sum is σ = 82023150. Its totient is φ = 21872832.

The previous prime is 43745671. The next prime is 43745693. The reversal of 43745672 is 27654734.

It can be written as a sum of positive squares in only one way, i.e., 43744996 + 676 = 6614^2 + 26^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (43745671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2734097 + ... + 2734112.

Almost surely, 2^43745672 is an apocalyptic number.

It is an amenable number.

43745672 is a deficient number, since it is larger than the sum of its proper divisors (38277478).

43745672 is a wasteful number, since it uses less digits than its factorization.

43745672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5468215 (or 5468211 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 43745672 is about 6614.0511035220. The cubic root of 43745672 is about 352.3533169024.

The spelling of 43745672 in words is "forty-three million, seven hundred forty-five thousand, six hundred seventy-two".