242407785 has 32 divisors (see below), whose sum is σ = 398579328. Its totient is φ = 125729280.

The previous prime is 242407729. The next prime is 242407801. The reversal of 242407785 is 587704242.

It is not a de Polignac number, because 242407785 - 2¹⁰ = 242406761 is a prime.

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, 376674 + ... + 377316.

It is an arithmetic number, because the mean of its divisors is an integer number (12455604).

Almost surely, 2^242407785 is an apocalyptic number.

It is an amenable number.

242407785 is a deficient number, since it is larger than the sum of its proper divisors (156171543).

242407785 is a wasteful number, since it uses less digits than its factorization.

242407785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 242407785 is about 15569.4503756555. The cubic root of 242407785 is about 623.5177975669.

The spelling of 242407785 in words is "two hundred forty-two million, four hundred seven thousand, seven hundred eighty-five".