242458890 has 16 divisors (see below), whose sum is σ = 581901408. Its totient is φ = 64655696.

The previous prime is 242458859. The next prime is 242458903. The reversal of 242458890 is 98854242.

It is a super-4 number, since 4×242458890⁴ (a number of 35 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4040952 + ... + 4041011.

It is an arithmetic number, because the mean of its divisors is an integer number (36368838).

Almost surely, 2^242458890 is an apocalyptic number.

242458890 is an abundant number, since it is smaller than the sum of its proper divisors (339442518).

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

242458890 is a wasteful number, since it uses less digits than its factorization.

242458890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081973.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 242458890 is about 15571.0914839005. The cubic root of 242458890 is about 623.5616116686.

The spelling of 242458890 in words is "two hundred forty-two million, four hundred fifty-eight thousand, eight hundred ninety".