249654066 has 8 divisors (see below), whose sum is σ = 499308144. Its totient is φ = 83218020.

The previous prime is 249654047. The next prime is 249654071. The reversal of 249654066 is 660456942.

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

249654066 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20804500 + ... + 20804511.

It is an arithmetic number, because the mean of its divisors is an integer number (62413518).

Almost surely, 2^249654066 is an apocalyptic number.

249654066 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.

249654066 is a wasteful number, since it uses less digits than its factorization.

249654066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41609016.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 249654066 is about 15800.4451203123. The cubic root of 249654066 is about 629.6698244696.

The spelling of 249654066 in words is "two hundred forty-nine million, six hundred fifty-four thousand, sixty-six".