421263 has 6 divisors (see below), whose sum is σ = 608504. Its totient is φ = 280836.

The previous prime is 421241. The next prime is 421273. The reversal of 421263 is 362124.

It is a happy number.

It is not a de Polignac number, because 421263 - 2¹³ = 413071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421273) 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, 23395 + ... + 23412.

2⁴²¹²⁶³ is an apocalyptic number.

421263 is a deficient number, since it is larger than the sum of its proper divisors (187241).

421263 is a wasteful number, since it uses less digits than its factorization.

421263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46813 (or 46810 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 421263 is about 649.0477640359. The cubic root of 421263 is about 74.9637157822.

Adding to 421263 its reverse (362124), we get a palindrome (783387).

It can be divided in two parts, 4212 and 63, that multiplied together give a triangular number (265356 = T₇₂₈).

The spelling of 421263 in words is "four hundred twenty-one thousand, two hundred sixty-three".