249390927 has 16 divisors (see below), whose sum is σ = 378062080. Its totient is φ = 162393336.

The previous prime is 249390907. The next prime is 249390929. The reversal of 249390927 is 729093942.

It is not a de Polignac number, because 249390927 - 2¹¹ = 249388879 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 (249390929) 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 15 ways as a sum of consecutive naturals, for example, 106243 + ... + 108564.

It is an arithmetic number, because the mean of its divisors is an integer number (23628880).

Almost surely, 2^249390927 is an apocalyptic number.

249390927 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

249390927 is a deficient number, since it is larger than the sum of its proper divisors (128671153).

249390927 is a wasteful number, since it uses less digits than its factorization.

249390927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214859 (or 214853 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 249390927 is about 15792.1159760179. The cubic root of 249390927 is about 629.4485196615.

The spelling of 249390927 in words is "two hundred forty-nine million, three hundred ninety thousand, nine hundred twenty-seven".