43012420 has 24 divisors (see below), whose sum is σ = 98538048. Its totient is φ = 15640800.

The previous prime is 43012399. The next prime is 43012421. The reversal of 43012420 is 2421034.

It is a junction number, because it is equal to n+sod(n) for n = 43012394 and 43012403.

It is not an unprimeable number, because it can be changed into a prime (43012421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97536 + ... + 97975.

It is an arithmetic number, because the mean of its divisors is an integer number (4105752).

Almost surely, 2^43012420 is an apocalyptic number.

It is an amenable number.

43012420 is an abundant number, since it is smaller than the sum of its proper divisors (55525628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43012420 is a wasteful number, since it uses less digits than its factorization.

43012420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195531 (or 195529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 43012420 is about 6558.3854720503. The cubic root of 43012420 is about 350.3735331823.

Adding to 43012420 its reverse (2421034), we get a palindrome (45433454).

The spelling of 43012420 in words is "forty-three million, twelve thousand, four hundred twenty".