43401420232 has 16 divisors (see below), whose sum is σ = 82183383900. Its totient is φ = 21485851200.

The previous prime is 43401420173. The next prime is 43401420277. The reversal of 43401420232 is 23202410434.

It is a happy number.

43401420232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42529163076 + 872257156 = 206226^2 + 29534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43401420197 and 43401420206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26856507 + ... + 26858122.

Almost surely, 2^43401420232 is an apocalyptic number.

It is an amenable number.

43401420232 is a deficient number, since it is larger than the sum of its proper divisors (38781963668).

43401420232 is a wasteful number, since it uses less digits than its factorization.

43401420232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53714736 (or 53714732 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43401420232 its reverse (23202410434), we get a palindrome (66603830666).

The spelling of 43401420232 in words is "forty-three billion, four hundred one million, four hundred twenty thousand, two hundred thirty-two".