242156742 has 64 divisors (see below), whose sum is σ = 523321344. Its totient is φ = 74511360.

The previous prime is 242156731. The next prime is 242156753. The reversal of 242156742 is 247651242.

242156742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (242156731) and next prime (242156753).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 718398 + ... + 718734.

It is an arithmetic number, because the mean of its divisors is an integer number (8176896).

Almost surely, 2^242156742 is an apocalyptic number.

242156742 is an abundant number, since it is smaller than the sum of its proper divisors (281164602).

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

242156742 is a wasteful number, since it uses less digits than its factorization.

242156742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its digits is 26880, while the sum is 33.

The square root of 242156742 is about 15561.3862493031. The cubic root of 242156742 is about 623.3024801630.

The spelling of 242156742 in words is "two hundred forty-two million, one hundred fifty-six thousand, seven hundred forty-two".