43145416 has 8 divisors (see below), whose sum is σ = 80897670. Its totient is φ = 21572704.

The previous prime is 43145411. The next prime is 43145423. The reversal of 43145416 is 61454134.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 3076516 = 6330^2 + 1754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (43145411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2696581 + ... + 2696596.

Almost surely, 2^43145416 is an apocalyptic number.

It is an amenable number.

43145416 is a deficient number, since it is larger than the sum of its proper divisors (37752254).

43145416 is a wasteful number, since it uses less digits than its factorization.

43145416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393183 (or 5393179 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 43145416 is about 6568.5170320248. The cubic root of 43145416 is about 350.7342842776.

It can be divided in two parts, 4314 and 5416, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 43145416 in words is "forty-three million, one hundred forty-five thousand, four hundred sixteen".