43728970 has 8 divisors (see below), whose sum is σ = 78712164. Its totient is φ = 17491584.

The previous prime is 43728953. The next prime is 43728977. The reversal of 43728970 is 7982734.

It can be written as a sum of positive squares in 2 ways, for example, as 42367081 + 1361889 = 6509^2 + 1167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (43728977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2186439 + ... + 2186458.

Almost surely, 2^43728970 is an apocalyptic number.

43728970 is a deficient number, since it is larger than the sum of its proper divisors (34983194).

43728970 is a wasteful number, since it uses less digits than its factorization.

43728970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372904.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 43728970 is about 6612.7883680033. The cubic root of 43728970 is about 352.3084686241.

The spelling of 43728970 in words is "forty-three million, seven hundred twenty-eight thousand, nine hundred seventy".