249795389 has 8 divisors (see below), whose sum is σ = 253317792. Its totient is φ = 246285360.

The previous prime is 249795383. The next prime is 249795407. The reversal of 249795389 is 983597942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249795389 - 2⁴ = 249795373 is a prime.

It is a super-2 number, since 2×249795389² = 124795472731322642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249795383) 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 7 ways as a sum of consecutive naturals, for example, 42122 + ... + 47684.

It is an arithmetic number, because the mean of its divisors is an integer number (31664724).

Almost surely, 2^249795389 is an apocalyptic number.

It is an amenable number.

249795389 is a deficient number, since it is larger than the sum of its proper divisors (3522403).

249795389 is an equidigital number, since it uses as much as digits as its factorization.

249795389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187.

The product of its digits is 4898880, while the sum is 56.

The square root of 249795389 is about 15804.9166084481. The cubic root of 249795389 is about 629.7886155689.

The spelling of 249795389 in words is "two hundred forty-nine million, seven hundred ninety-five thousand, three hundred eighty-nine".