249345012 has 48 divisors (see below), whose sum is σ = 669036032. Its totient is φ = 70800480.

The previous prime is 249344993. The next prime is 249345017. The reversal of 249345012 is 210543942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249345017) 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, 4587 + ... + 22797.

Almost surely, 2^249345012 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 249345012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334518016).

249345012 is an abundant number, since it is smaller than the sum of its proper divisors (419691020).

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

249345012 is a wasteful number, since it uses less digits than its factorization.

249345012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18388 (or 18386 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 249345012 is about 15790.6621773756. The cubic root of 249345012 is about 629.4098883408.

Adding to 249345012 its reverse (210543942), we get a palindrome (459888954).

The spelling of 249345012 in words is "two hundred forty-nine million, three hundred forty-five thousand, twelve".