242770645 has 16 divisors (see below), whose sum is σ = 314479872. Its totient is φ = 178850880.

The previous prime is 242770639. The next prime is 242770673. The reversal of 242770645 is 546077242.

It is not a de Polignac number, because 242770645 - 2³ = 242770637 is a prime.

It is a Duffinian number.

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, 24580 + ... + 33010.

It is an arithmetic number, because the mean of its divisors is an integer number (19654992).

Almost surely, 2^242770645 is an apocalyptic number.

It is an amenable number.

242770645 is a deficient number, since it is larger than the sum of its proper divisors (71709227).

242770645 is a wasteful number, since it uses less digits than its factorization.

242770645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 242770645 is about 15581.0989663759. The cubic root of 242770645 is about 623.8287568743.

The spelling of 242770645 in words is "two hundred forty-two million, seven hundred seventy thousand, six hundred forty-five".