42943329 has 48 divisors (see below), whose sum is σ = 74203584. Its totient is φ = 23587200.

The previous prime is 42943319. The next prime is 42943337. The reversal of 42943329 is 92334924.

It is not a de Polignac number, because 42943329 - 2⁵ = 42943297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42943293 and 42943302.

It is not an unprimeable number, because it can be changed into a prime (42943319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78234 + ... + 78780.

It is an arithmetic number, because the mean of its divisors is an integer number (1545908).

Almost surely, 2^42943329 is an apocalyptic number.

It is an amenable number.

42943329 is a deficient number, since it is larger than the sum of its proper divisors (31260255).

42943329 is a wasteful number, since it uses less digits than its factorization.

42943329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 635 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 42943329 is about 6553.1159763886. The cubic root of 42943329 is about 350.1858305685.

The spelling of 42943329 in words is "forty-two million, nine hundred forty-three thousand, three hundred twenty-nine".