43429966 has 8 divisors (see below), whose sum is σ = 65277000. Its totient is φ = 21670968.

The previous prime is 43429961. The next prime is 43429993. The reversal of 43429966 is 66992434.

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

It is a super-2 number, since 2×43429966² = 3772323893522312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43429961) 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, 20761 + ... + 22756.

It is an arithmetic number, because the mean of its divisors is an integer number (8159625).

Almost surely, 2^43429966 is an apocalyptic number.

43429966 is a deficient number, since it is larger than the sum of its proper divisors (21847034).

43429966 is a wasteful number, since it uses less digits than its factorization.

43429966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44018.

The product of its digits is 279936, while the sum is 43.

The square root of 43429966 is about 6590.1415766279. The cubic root of 43429966 is about 351.5036424833.

The spelling of 43429966 in words is "forty-three million, four hundred twenty-nine thousand, nine hundred sixty-six".