43722064 has 10 divisors (see below), whose sum is σ = 84711530. Its totient is φ = 21861024.

The previous prime is 43722061. The next prime is 43722101. The reversal of 43722064 is 46022734.

It can be written as a sum of positive squares in only one way, i.e., 39690000 + 4032064 = 6300^2 + 2008^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43722061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366299 + ... + 1366330.

It is an arithmetic number, because the mean of its divisors is an integer number (8471153).

Almost surely, 2^43722064 is an apocalyptic number.

It is an amenable number.

43722064 is a deficient number, since it is larger than the sum of its proper divisors (40989466).

43722064 is a wasteful number, since it uses less digits than its factorization.

43722064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732637 (or 2732631 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 43722064 is about 6612.2661773404. The cubic root of 43722064 is about 352.2899212677.

Adding to 43722064 its reverse (46022734), we get a palindrome (89744798).

The spelling of 43722064 in words is "forty-three million, seven hundred twenty-two thousand, sixty-four".