42424660 has 24 divisors (see below), whose sum is σ = 91165536. Its totient is φ = 16574880.

The previous prime is 42424631. The next prime is 42424661. The reversal of 42424660 is 6642424.

It is a super-2 number, since 2×42424660² = 3599703552231200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42424661) 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, 23806 + ... + 25525.

It is an arithmetic number, because the mean of its divisors is an integer number (3798564).

Almost surely, 2^42424660 is an apocalyptic number.

It is an amenable number.

42424660 is an abundant number, since it is smaller than the sum of its proper divisors (48740876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42424660 is a wasteful number, since it uses less digits than its factorization.

42424660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49383 (or 49381 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 42424660 is about 6513.4215278915. The cubic root of 42424660 is about 348.7702694162.

The spelling of 42424660 in words is "forty-two million, four hundred twenty-four thousand, six hundred sixty".