421252 has 12 divisors (see below), whose sum is σ = 793996. Its totient is φ = 194400.

The previous prime is 421241. The next prime is 421273. The reversal of 421252 is 252124.

It can be written as a sum of positive squares in 2 ways, for example, as 287296 + 133956 = 536^2 + 366^2 .

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

421252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3999 + ... + 4102.

2⁴²¹²⁵² is an apocalyptic number.

It is an amenable number.

421252 is a deficient number, since it is larger than the sum of its proper divisors (372744).

421252 is a wasteful number, since it uses less digits than its factorization.

421252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118 (or 8116 counting only the distinct ones).

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

The square root of 421252 is about 649.0392900280. The cubic root of 421252 is about 74.9630632935.

Adding to 421252 its reverse (252124), we get a palindrome (673376).

It can be divided in two parts, 4212 and 52, that multiplied together give a square (219024 = 468²).

The spelling of 421252 in words is "four hundred twenty-one thousand, two hundred fifty-two".