42906318 has 32 divisors (see below), whose sum is σ = 105616896. Its totient is φ = 11315808.

The previous prime is 42906271. The next prime is 42906319. The reversal of 42906318 is 81360924.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42906319) 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, 38746 + ... + 39837.

It is an arithmetic number, because the mean of its divisors is an integer number (3300528).

Almost surely, 2^42906318 is an apocalyptic number.

42906318 is an abundant number, since it is smaller than the sum of its proper divisors (62710578).

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

42906318 is a wasteful number, since it uses less digits than its factorization.

42906318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78608.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 42906318 is about 6550.2914438977. The cubic root of 42906318 is about 350.0851983066.

The spelling of 42906318 in words is "forty-two million, nine hundred six thousand, three hundred eighteen".