242245770 has 32 divisors (see below), whose sum is σ = 626113152. Its totient is φ = 59629632.

The previous prime is 242245739. The next prime is 242245777. The reversal of 242245770 is 77542242.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242245777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310182 + ... + 310961.

It is an arithmetic number, because the mean of its divisors is an integer number (19566036).

Almost surely, 2^242245770 is an apocalyptic number.

242245770 is an abundant number, since it is smaller than the sum of its proper divisors (383867382).

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

242245770 is a wasteful number, since it uses less digits than its factorization.

242245770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621166.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 242245770 is about 15564.2465285024. The cubic root of 242245770 is about 623.3788557283.

The spelling of 242245770 in words is "two hundred forty-two million, two hundred forty-five thousand, seven hundred seventy".