242185146 has 24 divisors (see below), whose sum is σ = 563451840. Its totient is φ = 69195672.

The previous prime is 242185129. The next prime is 242185171. The reversal of 242185146 is 641581242.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411586 + ... + 412173.

It is an arithmetic number, because the mean of its divisors is an integer number (23477160).

Almost surely, 2^242185146 is an apocalyptic number.

242185146 is an abundant number, since it is smaller than the sum of its proper divisors (321266694).

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

242185146 is a wasteful number, since it uses less digits than its factorization.

242185146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823778 (or 823771 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 242185146 is about 15562.2988661701. The cubic root of 242185146 is about 623.3268494914.

The spelling of 242185146 in words is "two hundred forty-two million, one hundred eighty-five thousand, one hundred forty-six".