249827120 has 40 divisors (see below), whose sum is σ = 583449264. Its totient is φ = 99483392.

The previous prime is 249827117. The next prime is 249827129. The reversal of 249827120 is 21728942.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (249827129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11282 + ... + 25038.

Almost surely, 2^249827120 is an apocalyptic number.

249827120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249827120 is an abundant number, since it is smaller than the sum of its proper divisors (333622144).

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

249827120 is a wasteful number, since it uses less digits than its factorization.

249827120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13997 (or 13991 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 249827120 is about 15805.9204097705. The cubic root of 249827120 is about 629.8152813619.

The spelling of 249827120 in words is "two hundred forty-nine million, eight hundred twenty-seven thousand, one hundred twenty".