43421324 has 6 divisors (see below), whose sum is σ = 75987324. Its totient is φ = 21710660.

The previous prime is 43421321. The next prime is 43421341. The reversal of 43421324 is 42312434.

It is a super-2 number, since 2×43421324² = 3770822755825952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43421324.

It is not an unprimeable number, because it can be changed into a prime (43421321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5427662 + ... + 5427669.

It is an arithmetic number, because the mean of its divisors is an integer number (12664554).

Almost surely, 2^43421324 is an apocalyptic number.

It is an amenable number.

43421324 is a deficient number, since it is larger than the sum of its proper divisors (32566000).

43421324 is a wasteful number, since it uses less digits than its factorization.

43421324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855335 (or 10855333 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 43421324 is about 6589.4858676531. The cubic root of 43421324 is about 351.4803260479.

Adding to 43421324 its reverse (42312434), we get a palindrome (85733758).

The spelling of 43421324 in words is "forty-three million, four hundred twenty-one thousand, three hundred twenty-four".