42694818 has 16 divisors (see below), whose sum is σ = 87697920. Its totient is φ = 13846896.

The previous prime is 42694807. The next prime is 42694889. The reversal of 42694818 is 81849624.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42694818.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95938 + ... + 96381.

It is an arithmetic number, because the mean of its divisors is an integer number (5481120).

Almost surely, 2^42694818 is an apocalyptic number.

42694818 is an abundant number, since it is smaller than the sum of its proper divisors (45003102).

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

42694818 is a wasteful number, since it uses less digits than its factorization.

42694818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192361.

The product of its digits is 110592, while the sum is 42.

The square root of 42694818 is about 6534.1271796622. The cubic root of 42694818 is about 349.5090204200.

The spelling of 42694818 in words is "forty-two million, six hundred ninety-four thousand, eight hundred eighteen".