43680364 has 96 divisors (see below), whose sum is σ = 100352000. Its totient is φ = 16511040.

The previous prime is 43680349. The next prime is 43680391. The reversal of 43680364 is 46308634.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 552877 + ... + 552955.

Almost surely, 2^43680364 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 43680364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50176000).

43680364 is an abundant number, since it is smaller than the sum of its proper divisors (56671636).

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

43680364 is a wasteful number, since it uses less digits than its factorization.

43680364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 43680364 is about 6609.1121945387. The cubic root of 43680364 is about 352.1778865861.

Adding to 43680364 its reverse (46308634), we get a palindrome (89988998).

It can be divided in two parts, 43680 and 364, that added together give a palindrome (44044).

The spelling of 43680364 in words is "forty-three million, six hundred eighty thousand, three hundred sixty-four".