43434890 has 8 divisors (see below), whose sum is σ = 78182820. Its totient is φ = 17373952.

The previous prime is 43434883. The next prime is 43434899. The reversal of 43434890 is 9843434.

It can be written as a sum of positive squares in 2 ways, for example, as 37466641 + 5968249 = 6121^2 + 2443^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 43434890.

It is not an unprimeable number, because it can be changed into a prime (43434899) 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, 2171735 + ... + 2171754.

Almost surely, 2^43434890 is an apocalyptic number.

43434890 is a deficient number, since it is larger than the sum of its proper divisors (34747930).

43434890 is a wasteful number, since it uses less digits than its factorization.

43434890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343496.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 43434890 is about 6590.5151543715. The cubic root of 43434890 is about 351.5169262340.

The spelling of 43434890 in words is "forty-three million, four hundred thirty-four thousand, eight hundred ninety".