242479986 has 32 divisors (see below), whose sum is σ = 567762048. Its totient is φ = 67589760.

The previous prime is 242479949. The next prime is 242480041. The reversal of 242479986 is 689974242.

It is a super-2 number, since 2×242479986² = 117593087221120392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68685 + ... + 72128.

It is an arithmetic number, because the mean of its divisors is an integer number (17742564).

Almost surely, 2^242479986 is an apocalyptic number.

242479986 is an abundant number, since it is smaller than the sum of its proper divisors (325282062).

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

242479986 is a wasteful number, since it uses less digits than its factorization.

242479986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140866.

The product of its digits is 1741824, while the sum is 51.

The square root of 242479986 is about 15571.7688783259. The cubic root of 242479986 is about 623.5796962110.

The spelling of 242479986 in words is "two hundred forty-two million, four hundred seventy-nine thousand, nine hundred eighty-six".