40228318 has 16 divisors (see below), whose sum is σ = 65116800. Its totient is φ = 18529056.

The previous prime is 40228289. The next prime is 40228319. The reversal of 40228318 is 81382204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40228319) 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, 14508 + ... + 17056.

It is an arithmetic number, because the mean of its divisors is an integer number (4069800).

Almost surely, 2^40228318 is an apocalyptic number.

40228318 is a deficient number, since it is larger than the sum of its proper divisors (24888482).

40228318 is a wasteful number, since it uses less digits than its factorization.

40228318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40228318 is about 6342.5797590570. The cubic root of 40228318 is about 342.6446523445.

The spelling of 40228318 in words is "forty million, two hundred twenty-eight thousand, three hundred eighteen".