249068407 has 4 divisors (see below), whose sum is σ = 284649616. Its totient is φ = 213487200.

The previous prime is 249068381. The next prime is 249068419. The reversal of 249068407 is 704860942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 249068407 - 2¹¹ = 249066359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249068407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249068447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17790594 + ... + 17790607.

It is an arithmetic number, because the mean of its divisors is an integer number (71162404).

Almost surely, 2^249068407 is an apocalyptic number.

249068407 is a deficient number, since it is larger than the sum of its proper divisors (35581209).

249068407 is an equidigital number, since it uses as much as digits as its factorization.

249068407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35581208.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 249068407 is about 15781.9012479486. The cubic root of 249068407 is about 629.1770618947.

The spelling of 249068407 in words is "two hundred forty-nine million, sixty-eight thousand, four hundred seven".