9640294225 has 27 divisors (see below), whose sum is σ = 12165184083. Its totient is φ = 7578311040.

The previous prime is 9640294219. The next prime is 9640294249. The reversal of 9640294225 is 5224920469.

The square root of 9640294225 is 98185.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 9312829009 + 327465216 = 96503^2 + 18096^2 .

It is not a de Polignac number, because 9640294225 - 2³ = 9640294217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 35837391 + ... + 35837659.

Almost surely, 2^9640294225 is an apocalyptic number.

9640294225 is the 98185-th square number.

9640294225 is the 49093-rd centered octagonal number.

It is an amenable number.

9640294225 is a deficient number, since it is larger than the sum of its proper divisors (2524889858).

9640294225 is an frugal number, since it uses more digits than its factorization.

9640294225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The cubic root of 9640294225 is about 2128.2865296505.

The spelling of 9640294225 in words is "nine billion, six hundred forty million, two hundred ninety-four thousand, two hundred twenty-five".