43430023 has 24 divisors (see below), whose sum is σ = 56306880. Its totient is φ = 33163200.

The previous prime is 43430017. The next prime is 43430027. The reversal of 43430023 is 32003434.

It is a de Polignac number, because none of the positive numbers 2^k-43430023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43430027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17298 + ... + 19648.

It is an arithmetic number, because the mean of its divisors is an integer number (2346120).

Almost surely, 2^43430023 is an apocalyptic number.

43430023 is a deficient number, since it is larger than the sum of its proper divisors (12876857).

43430023 is a wasteful number, since it uses less digits than its factorization.

43430023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 43430023 is about 6590.1459012680. The cubic root of 43430023 is about 351.5037962611.

Adding to 43430023 its reverse (32003434), we get a palindrome (75433457).

The spelling of 43430023 in words is "forty-three million, four hundred thirty thousand, twenty-three".