43198366 has 4 divisors (see below), whose sum is σ = 64797552. Its totient is φ = 21599182.

The previous prime is 43198349. The next prime is 43198367. The reversal of 43198366 is 66389134.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43198367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10799590 + ... + 10799593.

It is an arithmetic number, because the mean of its divisors is an integer number (16199388).

Almost surely, 2^43198366 is an apocalyptic number.

43198366 is a deficient number, since it is larger than the sum of its proper divisors (21599186).

43198366 is a wasteful number, since it uses less digits than its factorization.

43198366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21599185.

The product of its digits is 93312, while the sum is 40.

The square root of 43198366 is about 6572.5463862950. The cubic root of 43198366 is about 350.8777045992.

The spelling of 43198366 in words is "forty-three million, one hundred ninety-eight thousand, three hundred sixty-six".