242455631 has 16 divisors (see below), whose sum is σ = 275508000. Its totient is φ = 211344000.

The previous prime is 242455621. The next prime is 242455691. The reversal of 242455631 is 136554242.

It is a cyclic number.

It is not a de Polignac number, because 242455631 - 2²⁶ = 175346767 is a prime.

It is a super-2 number, since 2×242455631² = 117569466007216322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242455601) 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, 44981 + ... + 50081.

It is an arithmetic number, because the mean of its divisors is an integer number (17219250).

Almost surely, 2^242455631 is an apocalyptic number.

242455631 is a deficient number, since it is larger than the sum of its proper divisors (33052369).

242455631 is a wasteful number, since it uses less digits than its factorization.

242455631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290.

The product of its digits is 28800, while the sum is 32.

The square root of 242455631 is about 15570.9868344945. The cubic root of 242455631 is about 623.5588177978.

The spelling of 242455631 in words is "two hundred forty-two million, four hundred fifty-five thousand, six hundred thirty-one".