249183420 has 48 divisors (see below), whose sum is σ = 699877248. Its totient is φ = 66242880.

The previous prime is 249183413. The next prime is 249183427. The reversal of 249183420 is 24381942.

It is an interprime number because it is at equal distance from previous prime (249183413) and next prime (249183427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249183427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13587 + ... + 26133.

It is an arithmetic number, because the mean of its divisors is an integer number (14580776).

Almost surely, 2^249183420 is an apocalyptic number.

249183420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249183420 is an abundant number, since it is smaller than the sum of its proper divisors (450693828).

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

249183420 is a wasteful number, since it uses less digits than its factorization.

249183420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12890 (or 12888 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 249183420 is about 15785.5446532579. The cubic root of 249183420 is about 629.2738925963.

The spelling of 249183420 in words is "two hundred forty-nine million, one hundred eighty-three thousand, four hundred twenty".