249807378 has 16 divisors (see below), whose sum is σ = 500310720. Its totient is φ = 83153136.

The previous prime is 249807373. The next prime is 249807379. The reversal of 249807378 is 873708942.

249807378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×249807378² = 124807452206469768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249807373) 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, 24273 + ... + 32996.

It is an arithmetic number, because the mean of its divisors is an integer number (31269420).

Almost surely, 2^249807378 is an apocalyptic number.

249807378 is an abundant number, since it is smaller than the sum of its proper divisors (250503342).

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

249807378 is a wasteful number, since it uses less digits than its factorization.

249807378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58001.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 249807378 is about 15805.2958846078. The cubic root of 249807378 is about 629.7986910350.

The spelling of 249807378 in words is "two hundred forty-nine million, eight hundred seven thousand, three hundred seventy-eight".