4040661425 has 12 divisors (see below), whose sum is σ = 5011257756. Its totient is φ = 3231988800.

The previous prime is 4040661419. The next prime is 4040661431. The reversal of 4040661425 is 5241660404.

It is an interprime number because it is at equal distance from previous prime (4040661419) and next prime (4040661431).

It can be written as a sum of positive squares in 6 ways, for example, as 247086961 + 3793574464 = 15719^2 + 61592^2 .

It is not a de Polignac number, because 4040661425 - 2¹⁴ = 4040645041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4040661391 and 4040661400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214487 + ... + 232563.

It is an arithmetic number, because the mean of its divisors is an integer number (417604813).

Almost surely, 2^4040661425 is an apocalyptic number.

It is an amenable number.

4040661425 is a deficient number, since it is larger than the sum of its proper divisors (970596331).

4040661425 is a wasteful number, since it uses less digits than its factorization.

4040661425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27028 (or 27023 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 4040661425 is about 63566.1971884429. The cubic root of 4040661425 is about 1592.7617606910.

The spelling of 4040661425 in words is "four billion, forty million, six hundred sixty-one thousand, four hundred twenty-five".