242536890 has 32 divisors (see below), whose sum is σ = 582563520. Its totient is φ = 64623744.

The previous prime is 242536883. The next prime is 242536891. The reversal of 242536890 is 98635242.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (242536891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46326 + ... + 51294.

It is an arithmetic number, because the mean of its divisors is an integer number (18205110).

Almost surely, 2^242536890 is an apocalyptic number.

242536890 is an abundant number, since it is smaller than the sum of its proper divisors (340026630).

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

242536890 is a wasteful number, since it uses less digits than its factorization.

242536890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 242536890 is about 15573.5959238706. The cubic root of 242536890 is about 623.6284719254.

The spelling of 242536890 in words is "two hundred forty-two million, five hundred thirty-six thousand, eight hundred ninety".