421614 has 24 divisors (see below), whose sum is σ = 931320. Its totient is φ = 137808.

The previous prime is 421609. The next prime is 421621. The reversal of 421614 is 416124.

421614 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

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 421614.

It is an unprimeable number.

421614 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 864 + ... + 1260.

It is an arithmetic number, because the mean of its divisors is an integer number (38805).

2⁴²¹⁶¹⁴ is an apocalyptic number.

421614 is an abundant number, since it is smaller than the sum of its proper divisors (509706).

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

421614 is a wasteful number, since it uses less digits than its factorization.

421614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 461 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 421614 is about 649.3181038597. The cubic root of 421614 is about 74.9845301427.

Adding to 421614 its reverse (416124), we get a palindrome (837738).

It can be divided in two parts, 421 and 614, that added together give a triangular number (1035 = T₄₅).

The spelling of 421614 in words is "four hundred twenty-one thousand, six hundred fourteen".