242886564 has 18 divisors (see below), whose sum is σ = 613963350. Its totient is φ = 80962176.

The previous prime is 242886541. The next prime is 242886617. The reversal of 242886564 is 465688242.

242886564 is a `hidden beast` number, since 2 + 4 + 2 + 8 + 86 + 564 = 666.

It can be written as a sum of positive squares in only one way, i.e., 190440000 + 52446564 = 13800^2 + 7242^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3373389 + ... + 3373460.

It is an arithmetic number, because the mean of its divisors is an integer number (34109075).

Almost surely, 2^242886564 is an apocalyptic number.

It is an amenable number.

242886564 is an abundant number, since it is smaller than the sum of its proper divisors (371076786).

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

242886564 is a wasteful number, since it uses less digits than its factorization.

242886564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6746859 (or 6746854 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 242886564 is about 15584.8183820024. The cubic root of 242886564 is about 623.9280304077.

The spelling of 242886564 in words is "two hundred forty-two million, eight hundred eighty-six thousand, five hundred sixty-four".