421594 has 8 divisors (see below), whose sum is σ = 635508. Its totient is φ = 209760.

The previous prime is 421559. The next prime is 421607. The reversal of 421594 is 495124.

It can be written as a sum of positive squares in 2 ways, for example, as 308025 + 113569 = 555^2 + 337^2 .

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

It is a congruent number.

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, 174 + ... + 934.

2⁴²¹⁵⁹⁴ is an apocalyptic number.

421594 is a deficient number, since it is larger than the sum of its proper divisors (213914).

421594 is a wasteful number, since it uses less digits than its factorization.

421594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its digits is 1440, while the sum is 25.

The square root of 421594 is about 649.3027029052. The cubic root of 421594 is about 74.9833444497.

The spelling of 421594 in words is "four hundred twenty-one thousand, five hundred ninety-four".