40130425 has 6 divisors (see below), whose sum is σ = 49761758. Its totient is φ = 32104320.

The previous prime is 40130401. The next prime is 40130429. The reversal of 40130425 is 52403104.

It can be written as a sum of positive squares in 3 ways, for example, as 1354896 + 38775529 = 1164^2 + 6227^2 .

It is not a de Polignac number, because 40130425 - 2⁹ = 40129913 is a prime.

It is a super-2 number, since 2×40130425² = 3220902021361250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40130429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802584 + ... + 802633.

Almost surely, 2^40130425 is an apocalyptic number.

It is an amenable number.

40130425 is a deficient number, since it is larger than the sum of its proper divisors (9631333).

40130425 is a wasteful number, since it uses less digits than its factorization.

40130425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605227 (or 1605222 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40130425 is about 6334.8579305301. The cubic root of 40130425 is about 342.3664920890.

Adding to 40130425 its reverse (52403104), we get a palindrome (92533529).

The spelling of 40130425 in words is "forty million, one hundred thirty thousand, four hundred twenty-five".