249116628 has 12 divisors (see below), whose sum is σ = 581272160. Its totient is φ = 83038872.

The previous prime is 249116617. The next prime is 249116677. The reversal of 249116628 is 826611942.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 10379848 + ... + 10379871.

Almost surely, 2^249116628 is an apocalyptic number.

It is an amenable number.

249116628 is an abundant number, since it is smaller than the sum of its proper divisors (332155532).

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

249116628 is a wasteful number, since it uses less digits than its factorization.

249116628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20759726 (or 20759724 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 249116628 is about 15783.4289050257. The cubic root of 249116628 is about 629.2176633098.

The spelling of 249116628 in words is "two hundred forty-nine million, one hundred sixteen thousand, six hundred twenty-eight".