249275964 has 96 divisors (see below), whose sum is σ = 707857920. Its totient is φ = 66650112.

The previous prime is 249275899. The next prime is 249275977. The reversal of 249275964 is 469572942.

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 31 ways as a sum of consecutive naturals, for example, 323772 + ... + 324540.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^249275964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249275964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353928960).

249275964 is an abundant number, since it is smaller than the sum of its proper divisors (458581956).

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

249275964 is a wasteful number, since it uses less digits than its factorization.

249275964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1025 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 249275964 is about 15788.4756705643. The cubic root of 249275964 is about 629.3517847707.

The spelling of 249275964 in words is "two hundred forty-nine million, two hundred seventy-five thousand, nine hundred sixty-four".