9444730725 has 72 divisors (see below), whose sum is σ = 17079601032. Its totient is φ = 4988928000.

The previous prime is 9444730721. The next prime is 9444730733. The reversal of 9444730725 is 5270374449.

It can be written as a sum of positive squares in 12 ways, for example, as 241398369 + 9203332356 = 15537^2 + 95934^2 .

It is not a de Polignac number, because 9444730725 - 2² = 9444730721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9444730721) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13472875 + ... + 13473575.

It is an arithmetic number, because the mean of its divisors is an integer number (237216681).

Almost surely, 2^9444730725 is an apocalyptic number.

It is an amenable number.

9444730725 is a deficient number, since it is larger than the sum of its proper divisors (7634870307).

9444730725 is a wasteful number, since it uses less digits than its factorization.

9444730725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 9444730725 is about 97184.0044709005. The cubic root of 9444730725 is about 2113.7965925390.

The spelling of 9444730725 in words is "nine billion, four hundred forty-four million, seven hundred thirty thousand, seven hundred twenty-five".