42426879 has 32 divisors (see below), whose sum is σ = 64757760. Its totient is φ = 24472800.

The previous prime is 42426877. The next prime is 42426887. The reversal of 42426879 is 97862424.

It is not a de Polignac number, because 42426879 - 2¹ = 42426877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42426879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42426877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68232 + ... + 68850.

It is an arithmetic number, because the mean of its divisors is an integer number (2023680).

Almost surely, 2^42426879 is an apocalyptic number.

42426879 is a deficient number, since it is larger than the sum of its proper divisors (22330881).

42426879 is a wasteful number, since it uses less digits than its factorization.

42426879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its digits is 193536, while the sum is 42.

The square root of 42426879 is about 6513.5918662440. The cubic root of 42426879 is about 348.7763500600.

The spelling of 42426879 in words is "forty-two million, four hundred twenty-six thousand, eight hundred seventy-nine".