425400331 has 4 divisors (see below), whose sum is σ = 430180200. Its totient is φ = 420620464.

The previous prime is 425400323. The next prime is 425400347. The reversal of 425400331 is 133004524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425400331 - 2³ = 425400323 is a prime.

It is a super-2 number, since 2×425400331² = 361930883229819122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425400931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389801 + ... + 2389978.

It is an arithmetic number, because the mean of its divisors is an integer number (107545050).

Almost surely, 2^425400331 is an apocalyptic number.

425400331 is a deficient number, since it is larger than the sum of its proper divisors (4779869).

425400331 is an equidigital number, since it uses as much as digits as its factorization.

425400331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779868.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 425400331 is about 20625.2352956275. The cubic root of 425400331 is about 752.0832928668.

Adding to 425400331 its reverse (133004524), we get a palindrome (558404855).

The spelling of 425400331 in words is "four hundred twenty-five million, four hundred thousand, three hundred thirty-one".