421774 has 16 divisors (see below), whose sum is σ = 676512. Its totient is φ = 196768.

The previous prime is 421741. The next prime is 421783. The reversal of 421774 is 477124.

421774 = T₄₆ + T₄₇ + ... + T₁₃₇.

421774 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 unprimeable number.

421774 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 7 ways as a sum of consecutive naturals, for example, 2352 + ... + 2524.

It is an arithmetic number, because the mean of its divisors is an integer number (42282).

2⁴²¹⁷⁷⁴ is an apocalyptic number.

421774 is a deficient number, since it is larger than the sum of its proper divisors (254738).

421774 is a wasteful number, since it uses less digits than its factorization.

421774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its digits is 1568, while the sum is 25.

The square root of 421774 is about 649.4412983480. The cubic root of 421774 is about 74.9940143371.

Adding to 421774 its reverse (477124), we get a palindrome (898898).

The spelling of 421774 in words is "four hundred twenty-one thousand, seven hundred seventy-four", and thus it is an iban number.