242487564 has 24 divisors (see below), whose sum is σ = 617241408. Its totient is φ = 73481040.

The previous prime is 242487559. The next prime is 242487569. The reversal of 242487564 is 465784242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242487559) and next prime (242487569).

It is not an unprimeable number, because it can be changed into a prime (242487569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918382 + ... + 918645.

It is an arithmetic number, because the mean of its divisors is an integer number (25718392).

Almost surely, 2^242487564 is an apocalyptic number.

It is an amenable number.

242487564 is an abundant number, since it is smaller than the sum of its proper divisors (374753844).

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

242487564 is a wasteful number, since it uses less digits than its factorization.

242487564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837045 (or 1837043 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 242487564 is about 15572.0122013823. The cubic root of 242487564 is about 623.5861921942.

The spelling of 242487564 in words is "two hundred forty-two million, four hundred eighty-seven thousand, five hundred sixty-four".