42823988 has 12 divisors (see below), whose sum is σ = 76060992. Its totient is φ = 21092280.

The previous prime is 42823961. The next prime is 42823997. The reversal of 42823988 is 88932824.

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, 79628 + ... + 80163.

It is an arithmetic number, because the mean of its divisors is an integer number (6338416).

Almost surely, 2^42823988 is an apocalyptic number.

It is an amenable number.

42823988 is a deficient number, since it is larger than the sum of its proper divisors (33237004).

42823988 is a wasteful number, since it uses less digits than its factorization.

42823988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159862 (or 159860 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 42823988 is about 6544.0039731039. The cubic root of 42823988 is about 349.8611367497.

The spelling of 42823988 in words is "forty-two million, eight hundred twenty-three thousand, nine hundred eighty-eight".