425890 has 8 divisors (see below), whose sum is σ = 766620. Its totient is φ = 170352.

The previous prime is 425879. The next prime is 425899. The reversal of 425890 is 98524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 32761 = 627^2 + 181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (425899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21285 + ... + 21304.

2⁴²⁵⁸⁹⁰ is an apocalyptic number.

425890 is a deficient number, since it is larger than the sum of its proper divisors (340730).

425890 is a wasteful number, since it uses less digits than its factorization.

425890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42596.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 425890 is about 652.6024823735. The cubic root of 425890 is about 75.2371751082.

The spelling of 425890 in words is "four hundred twenty-five thousand, eight hundred ninety".