249342012 has 72 divisors (see below), whose sum is σ = 647541440. Its totient is φ = 80870400.

The previous prime is 249342007. The next prime is 249342047. The reversal of 249342012 is 210243942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207012 + ... + 208212.

Almost surely, 2^249342012 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 249342012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323770720).

249342012 is an abundant number, since it is smaller than the sum of its proper divisors (398199428).

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

249342012 is a wasteful number, since it uses less digits than its factorization.

249342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 249342012 is about 15790.5671842401. The cubic root of 249342012 is about 629.4073640778.

Adding to 249342012 its reverse (210243942), we get a palindrome (459585954).

The spelling of 249342012 in words is "two hundred forty-nine million, three hundred forty-two thousand, twelve".