402130225 has 12 divisors (see below), whose sum is σ = 569876224. Its totient is φ = 275746320.

The previous prime is 402130217. The next prime is 402130243. The reversal of 402130225 is 522031204.

It is not a de Polignac number, because 402130225 - 2³ = 402130217 is a prime.

It is a Duffinian number.

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, 1148769 + ... + 1149118.

Almost surely, 2^402130225 is an apocalyptic number.

It is an amenable number.

402130225 is a deficient number, since it is larger than the sum of its proper divisors (167745999).

402130225 is a wasteful number, since it uses less digits than its factorization.

402130225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297904 (or 2297899 counting only the distinct ones).

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

The square root of 402130225 is about 20053.1849091360. The cubic root of 402130225 is about 738.1119540158. Note that the first 3 decimals are identical.

Adding to 402130225 its reverse (522031204), we get a palindrome (924161429).

The spelling of 402130225 in words is "four hundred two million, one hundred thirty thousand, two hundred twenty-five".