43364491 has 4 divisors (see below), whose sum is σ = 43555752. Its totient is φ = 43173232.

The previous prime is 43364471. The next prime is 43364521. The reversal of 43364491 is 19446334.

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 43364491 - 2⁵ = 43364459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43364401) 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, 95290 + ... + 95743.

It is an arithmetic number, because the mean of its divisors is an integer number (10888938).

Almost surely, 2^43364491 is an apocalyptic number.

43364491 is a deficient number, since it is larger than the sum of its proper divisors (191261).

43364491 is a wasteful number, since it uses less digits than its factorization.

43364491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191260.

The product of its digits is 31104, while the sum is 34.

The square root of 43364491 is about 6585.1720554591. The cubic root of 43364491 is about 351.3269113883.

The spelling of 43364491 in words is "forty-three million, three hundred sixty-four thousand, four hundred ninety-one".