421374 has 8 divisors (see below), whose sum is σ = 842760. Its totient is φ = 140456.

The previous prime is 421361. The next prime is 421381. The reversal of 421374 is 473124.

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

421374 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 421374.

It is a congruent number.

It is an unprimeable number.

421374 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 3 ways as a sum of consecutive naturals, for example, 35109 + ... + 35120.

It is an arithmetic number, because the mean of its divisors is an integer number (105345).

2⁴²¹³⁷⁴ is an apocalyptic number.

421374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421374 is a wasteful number, since it uses less digits than its factorization.

421374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70234.

The product of its digits is 672, while the sum is 21.

The square root of 421374 is about 649.1332682893. The cubic root of 421374 is about 74.9702993509.

Adding to 421374 its reverse (473124), we get a palindrome (894498).

The spelling of 421374 in words is "four hundred twenty-one thousand, three hundred seventy-four", and thus it is an iban number.