421450 has 12 divisors (see below), whose sum is σ = 783990. Its totient is φ = 168560.

The previous prime is 421433. The next prime is 421453. The reversal of 421450 is 54124.

It can be written as a sum of positive squares in 3 ways, for example, as 239121 + 182329 = 489^2 + 427^2 .

It is not an unprimeable number, because it can be changed into a prime (421453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4165 + ... + 4264.

2⁴²¹⁴⁵⁰ is an apocalyptic number.

421450 is a deficient number, since it is larger than the sum of its proper divisors (362540).

421450 is a wasteful number, since it uses less digits than its factorization.

421450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441 (or 8436 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 421450 is about 649.1918052471. The cubic root of 421450 is about 74.9748063528.

Adding to 421450 its reverse (54124), we get a palindrome (475574).

The spelling of 421450 in words is "four hundred twenty-one thousand, four hundred fifty".