421124632 has 16 divisors (see below), whose sum is σ = 790439760. Its totient is φ = 210340704.

The previous prime is 421124621. The next prime is 421124633. The reversal of 421124632 is 236421124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421124597 and 421124606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421124633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19483 + ... + 34954.

It is an arithmetic number, because the mean of its divisors is an integer number (49402485).

Almost surely, 2^421124632 is an apocalyptic number.

It is an amenable number.

421124632 is a deficient number, since it is larger than the sum of its proper divisors (369315128).

421124632 is a wasteful number, since it uses less digits than its factorization.

421124632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55410 (or 55406 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 421124632 is about 20521.3213999489. The cubic root of 421124632 is about 749.5550735877. Note that the first 3 decimals are identical.

Adding to 421124632 its reverse (236421124), we get a palindrome (657545756).

The spelling of 421124632 in words is "four hundred twenty-one million, one hundred twenty-four thousand, six hundred thirty-two".