43104491 has 4 divisors (see below), whose sum is σ = 43811184. Its totient is φ = 42397800.

The previous prime is 43104487. The next prime is 43104493. The reversal of 43104491 is 19440134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43104491 - 2² = 43104487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43104491.

It is not an unprimeable number, because it can be changed into a prime (43104493) 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, 353255 + ... + 353376.

It is an arithmetic number, because the mean of its divisors is an integer number (10952796).

Almost surely, 2^43104491 is an apocalyptic number.

43104491 is a deficient number, since it is larger than the sum of its proper divisors (706693).

43104491 is an equidigital number, since it uses as much as digits as its factorization.

43104491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706692.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 43104491 is about 6565.4010540103. The cubic root of 43104491 is about 350.6233544448.

The spelling of 43104491 in words is "forty-three million, one hundred four thousand, four hundred ninety-one".