242290090 has 64 divisors (see below), whose sum is σ = 532684800. Its totient is φ = 77495616.

The previous prime is 242290067. The next prime is 242290121. The reversal of 242290090 is 90092242.

It is a happy number.

242290090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 87751 + ... + 90469.

It is an arithmetic number, because the mean of its divisors is an integer number (8323200).

Almost surely, 2^242290090 is an apocalyptic number.

242290090 is an abundant number, since it is smaller than the sum of its proper divisors (290394710).

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

242290090 is a wasteful number, since it uses less digits than its factorization.

242290090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 242290090 is about 15565.6702393440. The cubic root of 242290090 is about 623.4168701054.

The spelling of 242290090 in words is "two hundred forty-two million, two hundred ninety thousand, ninety".