249842361 has 8 divisors (see below), whose sum is σ = 343869184. Its totient is φ = 161188560.

The previous prime is 249842347. The next prime is 249842377. The reversal of 249842361 is 163248942.

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

It is not a de Polignac number, because 249842361 - 2⁶ = 249842297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249842321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343146 + ... + 1343331.

It is an arithmetic number, because the mean of its divisors is an integer number (42983648).

Almost surely, 2^249842361 is an apocalyptic number.

It is an amenable number.

249842361 is a deficient number, since it is larger than the sum of its proper divisors (94026823).

249842361 is a wasteful number, since it uses less digits than its factorization.

249842361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686511.

The product of its digits is 82944, while the sum is 39.

The square root of 249842361 is about 15806.4025318856. The cubic root of 249842361 is about 629.8280886444.

The spelling of 249842361 in words is "two hundred forty-nine million, eight hundred forty-two thousand, three hundred sixty-one".