420894 has 24 divisors (see below), whose sum is σ = 928200. Its totient is φ = 137808.

The previous prime is 420859. The next prime is 420899. The reversal of 420894 is 498024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420899) by changing a digit.

420894 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 11 ways as a sum of consecutive naturals, for example, 1032 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (38675).

2⁴²⁰⁸⁹⁴ is an apocalyptic number.

420894 is an abundant number, since it is smaller than the sum of its proper divisors (507306).

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

420894 is a wasteful number, since it uses less digits than its factorization.

420894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 420894 is about 648.7634391672. The cubic root of 420894 is about 74.9418215486.

The spelling of 420894 in words is "four hundred twenty thousand, eight hundred ninety-four".