242587494 has 64 divisors (see below), whose sum is σ = 563774400. Its totient is φ = 77220864.

The previous prime is 242587489. The next prime is 242587507. The reversal of 242587494 is 494785242.

242587494 is a `hidden beast` number, since 24 + 2 + 587 + 49 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151104 + ... + 152700.

It is an arithmetic number, because the mean of its divisors is an integer number (8808975).

Almost surely, 2^242587494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242587494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281887200).

242587494 is an abundant number, since it is smaller than the sum of its proper divisors (321186906).

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

242587494 is a wasteful number, since it uses less digits than its factorization.

242587494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1728 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 242587494 is about 15575.2205120826. The cubic root of 242587494 is about 623.6718411364.

The spelling of 242587494 in words is "two hundred forty-two million, five hundred eighty-seven thousand, four hundred ninety-four".