34278018 has 16 divisors (see below), whose sum is σ = 72588960. Its totient is φ = 10753856.

The previous prime is 34278017. The next prime is 34278031. The reversal of 34278018 is 81087243.

It is a self number, because there is not a number n which added to its sum of digits gives 34278018.

It is not an unprimeable number, because it can be changed into a prime (34278017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167928 + ... + 168131.

It is an arithmetic number, because the mean of its divisors is an integer number (4536810).

Almost surely, 2^34278018 is an apocalyptic number.

34278018 is an abundant number, since it is smaller than the sum of its proper divisors (38310942).

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

34278018 is a wasteful number, since it uses less digits than its factorization.

34278018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336081.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 34278018 is about 5854.7432052994. The cubic root of 34278018 is about 324.8417944005.

The spelling of 34278018 in words is "thirty-four million, two hundred seventy-eight thousand, eighteen".