242878558 has 32 divisors (see below), whose sum is σ = 437300640. Its totient is φ = 99947520.

The previous prime is 242878549. The next prime is 242878561. The reversal of 242878558 is 855878242.

242878558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 6063 + ... + 22858.

It is an arithmetic number, because the mean of its divisors is an integer number (13665645).

Almost surely, 2^242878558 is an apocalyptic number.

242878558 is a deficient number, since it is larger than the sum of its proper divisors (194422082).

242878558 is a wasteful number, since it uses less digits than its factorization.

242878558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28972.

The product of its digits is 1433600, while the sum is 49.

The square root of 242878558 is about 15584.5615273578. The cubic root of 242878558 is about 623.9211750502.

The spelling of 242878558 in words is "two hundred forty-two million, eight hundred seventy-eight thousand, five hundred fifty-eight".