425090 has 8 divisors (see below), whose sum is σ = 765180. Its totient is φ = 170032.

The previous prime is 425083. The next prime is 425101. The reversal of 425090 is 90524.

It can be written as a sum of positive squares in 2 ways, for example, as 405769 + 19321 = 637^2 + 139^2 .

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

It is a Curzon number.

It is an unprimeable number.

425090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21245 + ... + 21264.

2⁴²⁵⁰⁹⁰ is an apocalyptic number.

425090 is a deficient number, since it is larger than the sum of its proper divisors (340090).

425090 is a wasteful number, since it uses less digits than its factorization.

425090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42516.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 425090 is about 651.9892637153. The cubic root of 425090 is about 75.1900365931.

The spelling of 425090 in words is "four hundred twenty-five thousand, ninety".