43242012 has 90 divisors (see below), whose sum is σ = 124366704. Its totient is φ = 13091760.

The previous prime is 43241981. The next prime is 43242013. The reversal of 43242012 is 21024234.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43242013) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 38653 + ... + 39755.

Almost surely, 2^43242012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43242012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62183352).

43242012 is an abundant number, since it is smaller than the sum of its proper divisors (81124692).

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

43242012 is a wasteful number, since it uses less digits than its factorization.

43242012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 43242012 is about 6575.8658745446. The cubic root of 43242012 is about 350.9958360234.

Adding to 43242012 its reverse (21024234), we get a palindrome (64266246).

It can be divided in two parts, 4324 and 2012, that added together give a palindrome (6336).

The spelling of 43242012 in words is "forty-three million, two hundred forty-two thousand, twelve".