249574066 has 8 divisors (see below), whose sum is σ = 427841280. Its totient is φ = 106960308.

The previous prime is 249574043. The next prime is 249574097. The reversal of 249574066 is 660475942.

It is a happy number.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8913346 + ... + 8913373.

It is an arithmetic number, because the mean of its divisors is an integer number (53480160).

Almost surely, 2^249574066 is an apocalyptic number.

249574066 is a deficient number, since it is larger than the sum of its proper divisors (178267214).

249574066 is a wasteful number, since it uses less digits than its factorization.

249574066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17826728.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 249574066 is about 15797.9133432235. The cubic root of 249574066 is about 629.6025594358.

The spelling of 249574066 in words is "two hundred forty-nine million, five hundred seventy-four thousand, sixty-six".