425634 has 16 divisors (see below), whose sum is σ = 928800. Its totient is φ = 128960.

The previous prime is 425609. The next prime is 425641. The reversal of 425634 is 436524.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3159 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (58050).

2⁴²⁵⁶³⁴ is an apocalyptic number.

425634 is an abundant number, since it is smaller than the sum of its proper divisors (503166).

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

425634 is a wasteful number, since it uses less digits than its factorization.

425634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465.

The product of its digits is 2880, while the sum is 24.

The square root of 425634 is about 652.4063151135. The cubic root of 425634 is about 75.2220972107. Note that the first 3 decimals are identical.

The spelling of 425634 in words is "four hundred twenty-five thousand, six hundred thirty-four".