249457383 has 24 divisors (see below), whose sum is σ = 420212000. Its totient is φ = 142545312.

The previous prime is 249457361. The next prime is 249457387. The reversal of 249457383 is 383754942.

It is not a de Polignac number, because 249457383 - 2¹⁸ = 249195239 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 (249457387) 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 23 ways as a sum of consecutive naturals, for example, 37318 + ... + 43491.

Almost surely, 2^249457383 is an apocalyptic number.

249457383 is a deficient number, since it is larger than the sum of its proper divisors (170754617).

249457383 is an equidigital number, since it uses as much as digits as its factorization.

249457383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80836 (or 80819 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 249457383 is about 15794.2199237569. The cubic root of 249457383 is about 629.5044250845.

The spelling of 249457383 in words is "two hundred forty-nine million, four hundred fifty-seven thousand, three hundred eighty-three".