42670579 has 4 divisors (see below), whose sum is σ = 48766384. Its totient is φ = 36574776.

The previous prime is 42670567. The next prime is 42670597. The reversal of 42670579 is 97507624.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42670579 - 2¹¹ = 42668531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42670519) 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, 3047892 + ... + 3047905.

It is an arithmetic number, because the mean of its divisors is an integer number (12191596).

Almost surely, 2^42670579 is an apocalyptic number.

42670579 is a deficient number, since it is larger than the sum of its proper divisors (6095805).

42670579 is an equidigital number, since it uses as much as digits as its factorization.

42670579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095804.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 42670579 is about 6532.2721161936. The cubic root of 42670579 is about 349.4428659992.

The spelling of 42670579 in words is "forty-two million, six hundred seventy thousand, five hundred seventy-nine".