42918742 has 8 divisors (see below), whose sum is σ = 66118176. Its totient is φ = 20879352.

The previous prime is 42918731. The next prime is 42918749. The reversal of 42918742 is 24781924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42918749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289918 + ... + 290065.

It is an arithmetic number, because the mean of its divisors is an integer number (8264772).

Almost surely, 2^42918742 is an apocalyptic number.

42918742 is a deficient number, since it is larger than the sum of its proper divisors (23199434).

42918742 is a wasteful number, since it uses less digits than its factorization.

42918742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580022.

The product of its digits is 32256, while the sum is 37.

The square root of 42918742 is about 6551.2397300053. The cubic root of 42918742 is about 350.1189853957.

It can be divided in two parts, 42918 and 742, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 42918742 in words is "forty-two million, nine hundred eighteen thousand, seven hundred forty-two".