2391253072 has 40 divisors (see below), whose sum is σ = 5003889800. Its totient is φ = 1100459520.

The previous prime is 2391253069. The next prime is 2391253093. The reversal of 2391253072 is 2703521932.

It can be written as a sum of positive squares in 4 ways, for example, as 644347456 + 1746905616 = 25384^2 + 41796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56122 + ... + 89062.

It is an arithmetic number, because the mean of its divisors is an integer number (125097245).

Almost surely, 2^2391253072 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 2391253072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2501944900).

2391253072 is an abundant number, since it is smaller than the sum of its proper divisors (2612636728).

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

2391253072 is a wasteful number, since it uses less digits than its factorization.

2391253072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33311 (or 33305 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 2391253072 is about 48900.4404070147. The cubic root of 2391253072 is about 1337.2373974443.

The spelling of 2391253072 in words is "two billion, three hundred ninety-one million, two hundred fifty-three thousand, seventy-two".