42786418 has 8 divisors (see below), whose sum is σ = 64424448. Its totient is φ = 21311604.

The previous prime is 42786413. The next prime is 42786431. The reversal of 42786418 is 81468724.

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

It is not an unprimeable number, because it can be changed into a prime (42786413) 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, 40146 + ... + 41197.

It is an arithmetic number, because the mean of its divisors is an integer number (8053056).

Almost surely, 2^42786418 is an apocalyptic number.

42786418 is a deficient number, since it is larger than the sum of its proper divisors (21638030).

42786418 is a wasteful number, since it uses less digits than its factorization.

42786418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81608.

The product of its digits is 86016, while the sum is 40.

The square root of 42786418 is about 6541.1327765151. The cubic root of 42786418 is about 349.7587943534.

The spelling of 42786418 in words is "forty-two million, seven hundred eighty-six thousand, four hundred eighteen".