242432587 has 4 divisors (see below), whose sum is σ = 242699616. Its totient is φ = 242165560.

The previous prime is 242432551. The next prime is 242432639. The reversal of 242432587 is 785234242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242432587 - 2¹⁹ = 241908299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242432507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132148 + ... + 133969.

It is an arithmetic number, because the mean of its divisors is an integer number (60674904).

Almost surely, 2^242432587 is an apocalyptic number.

242432587 is a deficient number, since it is larger than the sum of its proper divisors (267029).

242432587 is an equidigital number, since it uses as much as digits as its factorization.

242432587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267028.

The product of its digits is 107520, while the sum is 37.

The square root of 242432587 is about 15570.2468509655. The cubic root of 242432587 is about 623.5390619569.

The spelling of 242432587 in words is "two hundred forty-two million, four hundred thirty-two thousand, five hundred eighty-seven".