43490459 has 8 divisors (see below), whose sum is σ = 45318000. Its totient is φ = 41684832.

The previous prime is 43490443. The next prime is 43490467. The reversal of 43490459 is 95409434.

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

It is not a de Polignac number, because 43490459 - 2⁴ = 43490443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43490959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364 + ... + 9425.

It is an arithmetic number, because the mean of its divisors is an integer number (5664750).

Almost surely, 2^43490459 is an apocalyptic number.

43490459 is a deficient number, since it is larger than the sum of its proper divisors (1827541).

43490459 is a wasteful number, since it uses less digits than its factorization.

43490459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10957.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 43490459 is about 6594.7296381277. The cubic root of 43490459 is about 351.6667682916. Note that the first 3 decimals are identical.

The spelling of 43490459 in words is "forty-three million, four hundred ninety thousand, four hundred fifty-nine".