242403891345 has 72 divisors (see below), whose sum is σ = 527812853568. Its totient is φ = 100739263680.

The previous prime is 242403891337. The next prime is 242403891407. The reversal of 242403891345 is 543198304242.

242403891345 is a `hidden beast` number, since 24 + 240 + 389 + 1 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 242403891345 - 2³ = 242403891337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 242403891345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3141787 + ... + 3218016.

Almost surely, 2^242403891345 is an apocalyptic number.

It is an amenable number.

242403891345 is an abundant number, since it is smaller than the sum of its proper divisors (285408962223).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242403891345 is a wasteful number, since it uses less digits than its factorization.

242403891345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359843 (or 6359829 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 242403891345 in words is "two hundred forty-two billion, four hundred three million, eight hundred ninety-one thousand, three hundred forty-five".