242446138 has 16 divisors (see below), whose sum is σ = 400585536. Its totient is φ = 109131840.

The previous prime is 242446121. The next prime is 242446153. The reversal of 242446138 is 831644242.

It is a super-2 number, since 2×242446138² = 117560259662230088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51231 + ... + 55762.

It is an arithmetic number, because the mean of its divisors is an integer number (25036596).

Almost surely, 2^242446138 is an apocalyptic number.

242446138 is a deficient number, since it is larger than the sum of its proper divisors (158139398).

242446138 is a wasteful number, since it uses less digits than its factorization.

242446138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107109.

The product of its digits is 36864, while the sum is 34.

The square root of 242446138 is about 15570.6820017622. The cubic root of 242446138 is about 623.5506795100.

The spelling of 242446138 in words is "two hundred forty-two million, four hundred forty-six thousand, one hundred thirty-eight".