425428 has 6 divisors (see below), whose sum is σ = 744506. Its totient is φ = 212712.

The previous prime is 425423. The next prime is 425441. The reversal of 425428 is 824524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 425104 + 324 = 652^2 + 18^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53175 + ... + 53182.

2⁴²⁵⁴²⁸ is an apocalyptic number.

It is an amenable number.

425428 is a deficient number, since it is larger than the sum of its proper divisors (319078).

425428 is a wasteful number, since it uses less digits than its factorization.

425428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106361 (or 106359 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 425428 is about 652.2484189325. The cubic root of 425428 is about 75.2099598246.

The spelling of 425428 in words is "four hundred twenty-five thousand, four hundred twenty-eight".