425642 has 8 divisors (see below), whose sum is σ = 729696. Its totient is φ = 182412.

The previous prime is 425641. The next prime is 425653. The reversal of 425642 is 246524.

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

It is a super-2 number, since 2×425642² = 362342224328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425641) 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, 15188 + ... + 15215.

It is an arithmetic number, because the mean of its divisors is an integer number (91212).

2⁴²⁵⁶⁴² is an apocalyptic number.

425642 is a deficient number, since it is larger than the sum of its proper divisors (304054).

425642 is a wasteful number, since it uses less digits than its factorization.

425642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30412.

The product of its digits is 1920, while the sum is 23.

The square root of 425642 is about 652.4124462332. The cubic root of 425642 is about 75.2225684865. Note that the first 3 decimals are identical.

The spelling of 425642 in words is "four hundred twenty-five thousand, six hundred forty-two".