242590731 has 16 divisors (see below), whose sum is σ = 343015200. Its totient is φ = 151976448.

The previous prime is 242590687. The next prime is 242590739. The reversal of 242590731 is 137095242.

242590731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242590731 - 2¹⁰ = 242589707 is a prime.

It is a super-2 number, since 2×242590731² = 117700525534228722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242590692 and 242590701.

It is not an unprimeable number, because it can be changed into a prime (242590739) 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, 32805 + ... + 39513.

It is an arithmetic number, because the mean of its divisors is an integer number (21438450).

Almost surely, 2^242590731 is an apocalyptic number.

242590731 is a deficient number, since it is larger than the sum of its proper divisors (100424469).

242590731 is a wasteful number, since it uses less digits than its factorization.

242590731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 242590731 is about 15575.3244267977. The cubic root of 242590731 is about 623.6746151414.

The spelling of 242590731 in words is "two hundred forty-two million, five hundred ninety thousand, seven hundred thirty-one".