42179884 has 12 divisors (see below), whose sum is σ = 77024304. Its totient is φ = 20172944.

The previous prime is 42179881. The next prime is 42179897. The reversal of 42179884 is 48897124.

It is a super-2 number, since 2×42179884² = 3558285228506912, 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 42179884.

It is not an unprimeable number, because it can be changed into a prime (42179881) 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, 229147 + ... + 229330.

It is an arithmetic number, because the mean of its divisors is an integer number (6418692).

Almost surely, 2^42179884 is an apocalyptic number.

It is an amenable number.

42179884 is a deficient number, since it is larger than the sum of its proper divisors (34844420).

42179884 is a wasteful number, since it uses less digits than its factorization.

42179884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458504 (or 458502 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 42179884 is about 6494.6042219676. The cubic root of 42179884 is about 348.0982129103.

The spelling of 42179884 in words is "forty-two million, one hundred seventy-nine thousand, eight hundred eighty-four".