242749770 has 32 divisors (see below), whose sum is σ = 583286400. Its totient is φ = 64656960.

The previous prime is 242749769. The next prime is 242749799. The reversal of 242749770 is 77947242.

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, 23931 + ... + 32529.

It is an arithmetic number, because the mean of its divisors is an integer number (18227700).

Almost surely, 2^242749770 is an apocalyptic number.

242749770 is an abundant number, since it is smaller than the sum of its proper divisors (340536630).

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

242749770 is a wasteful number, since it uses less digits than its factorization.

242749770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9550.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 242749770 is about 15580.4290698299. The cubic root of 242749770 is about 623.8108760764.

The spelling of 242749770 in words is "two hundred forty-two million, seven hundred forty-nine thousand, seven hundred seventy".