43394090 has 16 divisors (see below), whose sum is σ = 78268680. Its totient is φ = 17322240.

The previous prime is 43394069. The next prime is 43394101. The reversal of 43394090 is 9049334.

It can be written as a sum of positive squares in 4 ways, for example, as 21613201 + 21780889 = 4649^2 + 4667^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 9374.

Almost surely, 2^43394090 is an apocalyptic number.

43394090 is a deficient number, since it is larger than the sum of its proper divisors (34874590).

43394090 is a wasteful number, since it uses less digits than its factorization.

43394090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 43394090 is about 6587.4190697116. The cubic root of 43394090 is about 351.4068274666.

The spelling of 43394090 in words is "forty-three million, three hundred ninety-four thousand, ninety".