43472641 has 4 divisors (see below), whose sum is σ = 43518384. Its totient is φ = 43426900.

The previous prime is 43472617. The next prime is 43472677. The reversal of 43472641 is 14627434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43472641 - 2⁵ = 43472609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43472141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21415 + ... + 23356.

It is an arithmetic number, because the mean of its divisors is an integer number (10879596).

Almost surely, 2^43472641 is an apocalyptic number.

It is an amenable number.

43472641 is a deficient number, since it is larger than the sum of its proper divisors (45743).

43472641 is an equidigital number, since it uses as much as digits as its factorization.

43472641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45742.

The product of its digits is 16128, while the sum is 31.

The square root of 43472641 is about 6593.3785724771. The cubic root of 43472641 is about 351.6187358837.

The spelling of 43472641 in words is "forty-three million, four hundred seventy-two thousand, six hundred forty-one".