43628740 has 24 divisors (see below), whose sum is σ = 92514240. Its totient is φ = 17281248.

The previous prime is 43628729. The next prime is 43628747. The reversal of 43628740 is 4782634.

It is a junction number, because it is equal to n+sod(n) for n = 43628696 and 43628705.

It is not an unprimeable number, because it can be changed into a prime (43628747) 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, 8530 + ... + 12649.

It is an arithmetic number, because the mean of its divisors is an integer number (3854760).

Almost surely, 2^43628740 is an apocalyptic number.

It is an amenable number.

43628740 is an abundant number, since it is smaller than the sum of its proper divisors (48885500).

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

43628740 is a wasteful number, since it uses less digits than its factorization.

43628740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21291 (or 21289 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 43628740 is about 6605.2055229190. The cubic root of 43628740 is about 352.0390904418.

The spelling of 43628740 in words is "forty-three million, six hundred twenty-eight thousand, seven hundred forty".