43664134 has 8 divisors (see below), whose sum is σ = 65996568. Its totient is φ = 21665280.

The previous prime is 43664119. The next prime is 43664161. The reversal of 43664134 is 43146634.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 43664096 and 43664105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83067 + ... + 83590.

It is an arithmetic number, because the mean of its divisors is an integer number (8249571).

Almost surely, 2^43664134 is an apocalyptic number.

43664134 is a deficient number, since it is larger than the sum of its proper divisors (22332434).

43664134 is a wasteful number, since it uses less digits than its factorization.

43664134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166790.

The product of its digits is 20736, while the sum is 31.

The square root of 43664134 is about 6607.8842302207. The cubic root of 43664134 is about 352.1342624443.

The spelling of 43664134 in words is "forty-three million, six hundred sixty-four thousand, one hundred thirty-four".