42718215 has 16 divisors (see below), whose sum is σ = 69313536. Its totient is φ = 22461600.

The previous prime is 42718157. The next prime is 42718237. The reversal of 42718215 is 51281724.

It is not a de Polignac number, because 42718215 - 2¹³ = 42710023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18991 + ... + 21120.

It is an arithmetic number, because the mean of its divisors is an integer number (4332096).

Almost surely, 2^42718215 is an apocalyptic number.

42718215 is a deficient number, since it is larger than the sum of its proper divisors (26595321).

42718215 is a wasteful number, since it uses less digits than its factorization.

42718215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40190.

The product of its digits is 4480, while the sum is 30.

The square root of 42718215 is about 6535.9173036384. The cubic root of 42718215 is about 349.5728530631.

Adding to 42718215 its reverse (51281724), we get a palindrome (93999939).

The spelling of 42718215 in words is "forty-two million, seven hundred eighteen thousand, two hundred fifteen".