242770770 has 120 divisors (see below), whose sum is σ = 717812172. Its totient is φ = 58829760.

The previous prime is 242770753. The next prime is 242770777. The reversal of 242770770 is 77077242.

242770770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 241584849 + 1185921 = 15543^2 + 1089^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242770777) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 96772 + ... + 99248.

Almost surely, 2^242770770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242770770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358906086).

242770770 is an abundant number, since it is smaller than the sum of its proper divisors (475041402).

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

242770770 is a wasteful number, since it uses less digits than its factorization.

242770770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518 (or 2498 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 242770770 is about 15581.1029776457. The cubic root of 242770770 is about 623.8288639419.

The spelling of 242770770 in words is "two hundred forty-two million, seven hundred seventy thousand, seven hundred seventy".