42570979 has 8 divisors (see below), whose sum is σ = 47696688. Its totient is φ = 37654560.

The previous prime is 42570973. The next prime is 42570991. The reversal of 42570979 is 97907524.

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 42570979 - 2¹¹ = 42568931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42570973) 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, 51892 + ... + 52705.

It is an arithmetic number, because the mean of its divisors is an integer number (5962086).

Almost surely, 2^42570979 is an apocalyptic number.

42570979 is a deficient number, since it is larger than the sum of its proper divisors (5125709).

42570979 is a wasteful number, since it uses less digits than its factorization.

42570979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104645.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 42570979 is about 6524.6439749614. The cubic root of 42570979 is about 349.1707688837.

The spelling of 42570979 in words is "forty-two million, five hundred seventy thousand, nine hundred seventy-nine".