421232273 has 24 divisors (see below), whose sum is σ = 566007264. Its totient is φ = 308918400.

The previous prime is 421232269. The next prime is 421232333. The reversal of 421232273 is 372232124.

It is a happy number.

It is not a de Polignac number, because 421232273 - 2² = 421232269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421232233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13823 + ... + 32148.

It is an arithmetic number, because the mean of its divisors is an integer number (23583636).

Almost surely, 2^421232273 is an apocalyptic number.

It is an amenable number.

421232273 is a deficient number, since it is larger than the sum of its proper divisors (144774991).

421232273 is a wasteful number, since it uses less digits than its factorization.

421232273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46013 (or 46006 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 421232273 is about 20523.9438948756. The cubic root of 421232273 is about 749.6189311556.

Adding to 421232273 its reverse (372232124), we get a palindrome (793464397).

The spelling of 421232273 in words is "four hundred twenty-one million, two hundred thirty-two thousand, two hundred seventy-three".