40228288 has 28 divisors (see below), whose sum is σ = 83301840. Its totient is φ = 19238912.

The previous prime is 40228283. The next prime is 40228289. The reversal of 40228288 is 88282204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40228283) 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, 12193 + ... + 15136.

Almost surely, 2^40228288 is an apocalyptic number.

It is an amenable number.

40228288 is an abundant number, since it is smaller than the sum of its proper divisors (43073552).

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

40228288 is a wasteful number, since it uses less digits than its factorization.

40228288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27364 (or 27354 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 40228288 is about 6342.5773940883. The cubic root of 40228288 is about 342.6445671695.

The spelling of 40228288 in words is "forty million, two hundred twenty-eight thousand, two hundred eighty-eight".