249474198 has 8 divisors (see below), whose sum is σ = 498948408. Its totient is φ = 83158064.

The previous prime is 249474193. The next prime is 249474221. The reversal of 249474198 is 891474942.

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

249474198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249474193) 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 3 ways as a sum of consecutive naturals, for example, 20789511 + ... + 20789522.

It is an arithmetic number, because the mean of its divisors is an integer number (62368551).

Almost surely, 2^249474198 is an apocalyptic number.

249474198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

249474198 is a wasteful number, since it uses less digits than its factorization.

249474198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41579038.

The product of its digits is 580608, while the sum is 48.

The square root of 249474198 is about 15794.7522297756. The cubic root of 249474198 is about 629.5185689554.

The spelling of 249474198 in words is "two hundred forty-nine million, four hundred seventy-four thousand, one hundred ninety-eight".