249770612 has 48 divisors (see below), whose sum is σ = 539454720. Its totient is φ = 98537472.

The previous prime is 249770611. The next prime is 249770621. The reversal of 249770612 is 216077942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249770611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176564 + ... + 177972.

It is an arithmetic number, because the mean of its divisors is an integer number (11238640).

Almost surely, 2^249770612 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 249770612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269727360).

249770612 is an abundant number, since it is smaller than the sum of its proper divisors (289684108).

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

249770612 is a wasteful number, since it uses less digits than its factorization.

249770612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 249770612 is about 15804.1327506447. The cubic root of 249770612 is about 629.7677921414.

The spelling of 249770612 in words is "two hundred forty-nine million, seven hundred seventy thousand, six hundred twelve".