421674 has 16 divisors (see below), whose sum is σ = 920160. Its totient is φ = 127760.

The previous prime is 421661. The next prime is 421691. The reversal of 421674 is 476124.

421674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 421674.

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, 3129 + ... + 3260.

It is an arithmetic number, because the mean of its divisors is an integer number (57510).

2⁴²¹⁶⁷⁴ is an apocalyptic number.

421674 is an abundant number, since it is smaller than the sum of its proper divisors (498486).

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

421674 is a wasteful number, since it uses less digits than its factorization.

421674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405.

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

The square root of 421674 is about 649.3643045317. The cubic root of 421674 is about 74.9880869967.

Adding to 421674 its reverse (476124), we get a palindrome (897798).

The spelling of 421674 in words is "four hundred twenty-one thousand, six hundred seventy-four".