421364 has 6 divisors (see below), whose sum is σ = 737394. Its totient is φ = 210680.

The previous prime is 421361. The next prime is 421381. The reversal of 421364 is 463124.

421364 = T₄₅₇ + T₄₅₈ + ... + T₄₆₀.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 211600 + 209764 = 460^2 + 458^2 .

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 421364.

It is not an unprimeable number, because it can be changed into a prime (421361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52667 + ... + 52674.

It is an arithmetic number, because the mean of its divisors is an integer number (122899).

2⁴²¹³⁶⁴ is an apocalyptic number.

It is an amenable number.

421364 is a deficient number, since it is larger than the sum of its proper divisors (316030).

421364 is a wasteful number, since it uses less digits than its factorization.

421364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105345 (or 105343 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 421364 is about 649.1255656651. The cubic root of 421364 is about 74.9697062840.

Adding to 421364 its reverse (463124), we get a palindrome (884488).

The spelling of 421364 in words is "four hundred twenty-one thousand, three hundred sixty-four".