42455679 has 8 divisors (see below), whose sum is σ = 64694400. Its totient is φ = 24260376.

The previous prime is 42455669. The next prime is 42455683. The reversal of 42455679 is 97655424.

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

It is not a de Polignac number, because 42455679 - 2⁷ = 42455551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42455679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455669) 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, 1010829 + ... + 1010870.

It is an arithmetic number, because the mean of its divisors is an integer number (8086800).

Almost surely, 2^42455679 is an apocalyptic number.

42455679 is a deficient number, since it is larger than the sum of its proper divisors (22238721).

42455679 is a wasteful number, since it uses less digits than its factorization.

42455679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021709.

The product of its digits is 302400, while the sum is 42.

The square root of 42455679 is about 6515.8022529847. The cubic root of 42455679 is about 348.8552504107.

It can be divided in two parts, 42455 and 679, that added together give a palindrome (43134).

The spelling of 42455679 in words is "forty-two million, four hundred fifty-five thousand, six hundred seventy-nine".