421124432 has 20 divisors (see below), whose sum is σ = 831325140. Its totient is φ = 206588928.

The previous prime is 421124423. The next prime is 421124441. The reversal of 421124432 is 234421124.

It is an interprime number because it is at equal distance from previous prime (421124423) and next prime (421124441).

It can be written as a sum of positive squares in 2 ways, for example, as 272382016 + 148742416 = 16504^2 + 12196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 421124398 and 421124407.

It is a congruent number.

It is an unprimeable number.

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, 247457 + ... + 249152.

It is an arithmetic number, because the mean of its divisors is an integer number (41566257).

Almost surely, 2^421124432 is an apocalyptic number.

It is an amenable number.

421124432 is a deficient number, since it is larger than the sum of its proper divisors (410200708).

421124432 is a wasteful number, since it uses less digits than its factorization.

421124432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496670 (or 496664 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 421124432 is about 20521.3165269678. The cubic root of 421124432 is about 749.5549549284.

Adding to 421124432 its reverse (234421124), we get a palindrome (655545556).

The spelling of 421124432 in words is "four hundred twenty-one million, one hundred twenty-four thousand, four hundred thirty-two".