43042979 has 8 divisors (see below), whose sum is σ = 49670400. Its totient is φ = 36535176.

The previous prime is 43042933. The next prime is 43042991. The reversal of 43042979 is 97924034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43042979 - 2⁸ = 43042723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43042379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29129 + ... + 30570.

It is an arithmetic number, because the mean of its divisors is an integer number (6208800).

Almost surely, 2^43042979 is an apocalyptic number.

43042979 is a deficient number, since it is larger than the sum of its proper divisors (6627421).

43042979 is a wasteful number, since it uses less digits than its factorization.

43042979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59809.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 43042979 is about 6560.7148238588. The cubic root of 43042979 is about 350.4564900749.

The spelling of 43042979 in words is "forty-three million, forty-two thousand, nine hundred seventy-nine".