421746 has 16 divisors (see below), whose sum is σ = 908544. Its totient is φ = 129744.

The previous prime is 421741. The next prime is 421783. The reversal of 421746 is 647124.

421746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (421741) 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, 2626 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (56784).

2⁴²¹⁷⁴⁶ is an apocalyptic number.

421746 is an abundant number, since it is smaller than the sum of its proper divisors (486798).

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

421746 is a wasteful number, since it uses less digits than its factorization.

421746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425.

The product of its digits is 1344, while the sum is 24.

The square root of 421746 is about 649.4197409996. The cubic root of 421746 is about 74.9923547763.

The spelling of 421746 in words is "four hundred twenty-one thousand, seven hundred forty-six".