2389743225 has 27 divisors (see below), whose sum is σ = 4281609423. Its totient is φ = 1274138640.

The previous prime is 2389743199. The next prime is 2389743229. The reversal of 2389743225 is 5223479832.

The square root of 2389743225 is 48885.

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

2389743225 is a `hidden beast` number, since 2 + 389 + 7 + 43 + 225 = 666.

2389743225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 860307561 + 1529435664 = 29331^2 + 39108^2 .

It is not a de Polignac number, because 2389743225 - 2⁹ = 2389742713 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2389743229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 731646 + ... + 734904.

Almost surely, 2^2389743225 is an apocalyptic number.

2389743225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2389743225 is the 48885-th square number.

2389743225 is the 24443-rd centered octagonal number.

It is an amenable number.

2389743225 is a deficient number, since it is larger than the sum of its proper divisors (1891866198).

2389743225 is an frugal number, since it uses more digits than its factorization.

2389743225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534 (or 3267 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The cubic root of 2389743225 is about 1336.9558924619.

The spelling of 2389743225 in words is "two billion, three hundred eighty-nine million, seven hundred forty-three thousand, two hundred twenty-five".