42861579 has 8 divisors (see below), whose sum is σ = 57279552. Its totient is φ = 28509000.

The previous prime is 42861569. The next prime is 42861601. The reversal of 42861579 is 97516824.

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

It is not a de Polignac number, because 42861579 - 2⁷ = 42861451 is a prime.

It is a super-2 number, since 2×42861579² = 3674229908746482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42861579.

It is not an unprimeable number, because it can be changed into a prime (42861569) 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, 14797 + ... + 17454.

It is an arithmetic number, because the mean of its divisors is an integer number (7159944).

Almost surely, 2^42861579 is an apocalyptic number.

42861579 is a deficient number, since it is larger than the sum of its proper divisors (14417973).

42861579 is a wasteful number, since it uses less digits than its factorization.

42861579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32697.

The product of its digits is 120960, while the sum is 42.

The square root of 42861579 is about 6546.8755143198. The cubic root of 42861579 is about 349.9634764609.

The spelling of 42861579 in words is "forty-two million, eight hundred sixty-one thousand, five hundred seventy-nine".