240488687 has 2 divisors, whose sum is σ = 240488688. Its totient is φ = 240488686.

The previous prime is 240488659. The next prime is 240488693. The reversal of 240488687 is 786884042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240488687 - 2¹⁸ = 240226543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240488627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120244343 + 120244344.

It is an arithmetic number, because the mean of its divisors is an integer number (120244344).

Almost surely, 2^240488687 is an apocalyptic number.

240488687 is a deficient number, since it is larger than the sum of its proper divisors (1).

240488687 is an equidigital number, since it uses as much as digits as its factorization.

240488687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 240488687 is about 15507.6976692222. The cubic root of 240488687 is about 621.8680108202.

The spelling of 240488687 in words is "two hundred forty million, four hundred eighty-eight thousand, six hundred eighty-seven".