4004340025 has 18 divisors (see below), whose sum is σ = 5776057950. Its totient is φ = 2745832320.

The previous prime is 4004340017. The next prime is 4004340049. The reversal of 4004340025 is 5200434004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1315295289 + 2689044736 = 36267^2 + 51856^2 .

It is not a de Polignac number, because 4004340025 - 2³ = 4004340017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4004339978 and 4004340005.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1633200 + ... + 1635649.

Almost surely, 2^4004340025 is an apocalyptic number.

It is an amenable number.

4004340025 is a deficient number, since it is larger than the sum of its proper divisors (1771717925).

4004340025 is a wasteful number, since it uses less digits than its factorization.

4004340025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268873 (or 3268861 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4004340025 is about 63279.8548117803. The cubic root of 4004340025 is about 1587.9749578086.

Adding to 4004340025 its reverse (5200434004), we get a palindrome (9204774029).

The spelling of 4004340025 in words is "four billion, four million, three hundred forty thousand, twenty-five".