425778 has 16 divisors (see below), whose sum is σ = 881280. Its totient is φ = 136976.

The previous prime is 425713. The next prime is 425779. The reversal of 425778 is 877524.

425778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (425779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2⁴²⁵⁷⁷⁸ is an apocalyptic number.

425778 is an abundant number, since it is smaller than the sum of its proper divisors (455502).

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

425778 is a wasteful number, since it uses less digits than its factorization.

425778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481.

The product of its digits is 15680, while the sum is 33.

The square root of 425778 is about 652.5166664538. The cubic root of 425778 is about 75.2305792717.

The spelling of 425778 in words is "four hundred twenty-five thousand, seven hundred seventy-eight".