249494907 has 8 divisors (see below), whose sum is σ = 352228176. Its totient is φ = 156545792.

The previous prime is 249494899. The next prime is 249494911. The reversal of 249494907 is 709494942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 249494907 - 2³ = 249494899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249494977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445978 + ... + 2446079.

It is an arithmetic number, because the mean of its divisors is an integer number (44028522).

Almost surely, 2^249494907 is an apocalyptic number.

249494907 is a deficient number, since it is larger than the sum of its proper divisors (102733269).

249494907 is a wasteful number, since it uses less digits than its factorization.

249494907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892077.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 249494907 is about 15795.4077820106. The cubic root of 249494907 is about 629.5359873758.

The spelling of 249494907 in words is "two hundred forty-nine million, four hundred ninety-four thousand, nine hundred seven".