42718578 has 32 divisors (see below), whose sum is σ = 98987136. Its totient is φ = 12037248.

The previous prime is 42718561. The next prime is 42718579. The reversal of 42718578 is 87581724.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (42718579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3901 + ... + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (3093348).

Almost surely, 2^42718578 is an apocalyptic number.

42718578 is an abundant number, since it is smaller than the sum of its proper divisors (56268558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42718578 is a wasteful number, since it uses less digits than its factorization.

42718578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14018.

The product of its digits is 125440, while the sum is 42.

The square root of 42718578 is about 6535.9450732086. The cubic root of 42718578 is about 349.5738432308.

The spelling of 42718578 in words is "forty-two million, seven hundred eighteen thousand, five hundred seventy-eight".