249400308285 has 128 divisors (see below), whose sum is σ = 485582438400. Its totient is φ = 120982740480.

The previous prime is 249400308277. The next prime is 249400308337. The reversal of 249400308285 is 582803004942.

249400308285 is a `hidden beast` number, since 2 + 494 + 0 + 0 + 3 + 0 + 82 + 85 = 666.

249400308285 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 249400308285 - 2³ = 249400308277 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 249400308285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10086057 + ... + 10110753.

It is an arithmetic number, because the mean of its divisors is an integer number (3793612800).

Almost surely, 2^249400308285 is an apocalyptic number.

It is an amenable number.

249400308285 is a deficient number, since it is larger than the sum of its proper divisors (236182130115).

249400308285 is a wasteful number, since it uses less digits than its factorization.

249400308285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24888 (or 24882 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 249400308285 in words is "two hundred forty-nine billion, four hundred million, three hundred eight thousand, two hundred eighty-five".