249349240 has 48 divisors (see below), whose sum is σ = 652638600. Its totient is φ = 85490496.

The previous prime is 249349207. The next prime is 249349291. The reversal of 249349240 is 42943942.

249349240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 249349240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61650 + ... + 65569.

Almost surely, 2^249349240 is an apocalyptic number.

249349240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249349240 is an abundant number, since it is smaller than the sum of its proper divisors (403289360).

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

249349240 is a wasteful number, since it uses less digits than its factorization.

249349240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127244 (or 127233 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 249349240 is about 15790.7960533977. The cubic root of 249349240 is about 629.4134458346.

The spelling of 249349240 in words is "two hundred forty-nine million, three hundred forty-nine thousand, two hundred forty".