43974385 has 32 divisors (see below), whose sum is σ = 65544192. Its totient is φ = 27578880.

The previous prime is 43974383. The next prime is 43974391. The reversal of 43974385 is 58347934.

It is not a de Polignac number, because 43974385 - 2¹ = 43974383 is a prime.

It is a super-2 number, since 2×43974385² = 3867493072256450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43974383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57405 + ... + 58165.

It is an arithmetic number, because the mean of its divisors is an integer number (2048256).

Almost surely, 2^43974385 is an apocalyptic number.

It is an amenable number.

43974385 is a deficient number, since it is larger than the sum of its proper divisors (21569807).

43974385 is a wasteful number, since it uses less digits than its factorization.

43974385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its digits is 362880, while the sum is 43.

The square root of 43974385 is about 6631.3184963475. The cubic root of 43974385 is about 352.9663127550.

The spelling of 43974385 in words is "forty-three million, nine hundred seventy-four thousand, three hundred eighty-five".