425138472 has 48 divisors (see below), whose sum is σ = 1256093280. Its totient is φ = 128829600.

The previous prime is 425138459. The next prime is 425138479. The reversal of 425138472 is 274831524.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (425138479) 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 11 ways as a sum of consecutive naturals, for example, 267604 + ... + 269187.

It is an arithmetic number, because the mean of its divisors is an integer number (26168610).

Almost surely, 2^425138472 is an apocalyptic number.

It is an amenable number.

425138472 is an abundant number, since it is smaller than the sum of its proper divisors (830954808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425138472 is a wasteful number, since it uses less digits than its factorization.

425138472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536814 (or 536807 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 425138472 is about 20618.8862938812. The cubic root of 425138472 is about 751.9289439803.

Adding to 425138472 its reverse (274831524), we get a palindrome (699969996).

The spelling of 425138472 in words is "four hundred twenty-five million, one hundred thirty-eight thousand, four hundred seventy-two".