2390649631 has 2 divisors, whose sum is σ = 2390649632. Its totient is φ = 2390649630.

The previous prime is 2390649557. The next prime is 2390649637. The reversal of 2390649631 is 1369460932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2390649631 - 2¹⁹ = 2390125343 is a prime.

It is a super-2 number, since 2×2390649631² = 11430411316400872322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2390649637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195324815 + 1195324816.

It is an arithmetic number, because the mean of its divisors is an integer number (1195324816).

Almost surely, 2^2390649631 is an apocalyptic number.

2390649631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2390649631 is an equidigital number, since it uses as much as digits as its factorization.

2390649631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 2390649631 is about 48894.2699198996. The cubic root of 2390649631 is about 1337.1249024837.

It can be divided in two parts, 23906 and 49631, that added together give a palindrome (73537).

The spelling of 2390649631 in words is "two billion, three hundred ninety million, six hundred forty-nine thousand, six hundred thirty-one".