249244090 has 32 divisors (see below), whose sum is σ = 473901120. Its totient is φ = 94120704.

The previous prime is 249244069. The next prime is 249244129. The reversal of 249244090 is 90442942.

It is an unprimeable number.

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, 56194 + ... + 60466.

It is an arithmetic number, because the mean of its divisors is an integer number (14809410).

Almost surely, 2^249244090 is an apocalyptic number.

249244090 is a deficient number, since it is larger than the sum of its proper divisors (224657030).

249244090 is a wasteful number, since it uses less digits than its factorization.

249244090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 249244090 is about 15787.4662311595. The cubic root of 249244090 is about 629.3249593286.

The spelling of 249244090 in words is "two hundred forty-nine million, two hundred forty-four thousand, ninety".