43690016 has 12 divisors (see below), whose sum is σ = 86014782. Its totient is φ = 21844992.

The previous prime is 43690013. The next prime is 43690033. The reversal of 43690016 is 61009634.

It can be written as a sum of positive squares in only one way, i.e., 23078416 + 20611600 = 4804^2 + 4540^2 .

It is not an unprimeable number, because it can be changed into a prime (43690013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682625 + ... + 682688.

Almost surely, 2^43690016 is an apocalyptic number.

It is an amenable number.

43690016 is a deficient number, since it is larger than the sum of its proper divisors (42324766).

43690016 is a wasteful number, since it uses less digits than its factorization.

43690016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365323 (or 1365315 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 43690016 is about 6609.8423581807. The cubic root of 43690016 is about 352.2038247904.

The spelling of 43690016 in words is "forty-three million, six hundred ninety thousand, sixteen".