43218023029 has 16 divisors (see below), whose sum is σ = 46594025280. Its totient is φ = 39953934720.

The previous prime is 43218023027. The next prime is 43218023039. The reversal of 43218023029 is 92032081234.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43218023029 - 2¹ = 43218023027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43218022985 and 43218023003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43218023021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872139 + ... + 920359.

It is an arithmetic number, because the mean of its divisors is an integer number (2912126580).

Almost surely, 2^43218023029 is an apocalyptic number.

It is an amenable number.

43218023029 is a deficient number, since it is larger than the sum of its proper divisors (3376002251).

43218023029 is a wasteful number, since it uses less digits than its factorization.

43218023029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49380.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 43218023029 in words is "forty-three billion, two hundred eighteen million, twenty-three thousand, twenty-nine".