42718023 has 40 divisors (see below), whose sum is σ = 68911920. Its totient is φ = 26282880.

The previous prime is 42718021. The next prime is 42718037. The reversal of 42718023 is 32081724.

It is not a de Polignac number, because 42718023 - 2¹ = 42718021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42718021) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 62761 + ... + 63437.

It is an arithmetic number, because the mean of its divisors is an integer number (1722798).

Almost surely, 2^42718023 is an apocalyptic number.

42718023 is a deficient number, since it is larger than the sum of its proper divisors (26193897).

42718023 is a wasteful number, since it uses less digits than its factorization.

42718023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 42718023 is about 6535.9026155536. The cubic root of 42718023 is about 349.5723293358.

Adding to 42718023 its reverse (32081724), we get a palindrome (74799747).

The spelling of 42718023 in words is "forty-two million, seven hundred eighteen thousand, twenty-three".