240213400999 has 72 divisors (see below), whose sum is σ = 305640984096. Its totient is φ = 188095564800.

The previous prime is 240213400961. The next prime is 240213401017. The reversal of 240213400999 is 999004312042.

It is a happy number.

It is not a de Polignac number, because 240213400999 - 2⁹ = 240213400487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240213400939) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19277179 + ... + 19289635.

It is an arithmetic number, because the mean of its divisors is an integer number (4245013668).

Almost surely, 2^240213400999 is an apocalyptic number.

240213400999 is a deficient number, since it is larger than the sum of its proper divisors (65427583097).

240213400999 is a wasteful number, since it uses less digits than its factorization.

240213400999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12569 (or 12545 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 240213400999 in words is "two hundred forty billion, two hundred thirteen million, four hundred thousand, nine hundred ninety-nine".