421354 has 8 divisors (see below), whose sum is σ = 634788. Its totient is φ = 209760.

The previous prime is 421349. The next prime is 421361. The reversal of 421354 is 453124.

It can be written as a sum of positive squares in 2 ways, for example, as 416025 + 5329 = 645^2 + 73^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684 + ... + 1144.

2⁴²¹³⁵⁴ is an apocalyptic number.

421354 is a deficient number, since it is larger than the sum of its proper divisors (213434).

421354 is a wasteful number, since it uses less digits than its factorization.

421354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its digits is 480, while the sum is 19.

The square root of 421354 is about 649.1178629494. The cubic root of 421354 is about 74.9691132078.

Adding to 421354 its reverse (453124), we get a palindrome (874478).

The spelling of 421354 in words is "four hundred twenty-one thousand, three hundred fifty-four".