40016228 has 24 divisors (see below), whose sum is σ = 83513472. Its totient is φ = 16403904.

The previous prime is 40016213. The next prime is 40016231. The reversal of 40016228 is 82261004.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30425 + ... + 31712.

It is an arithmetic number, because the mean of its divisors is an integer number (3479728).

Almost surely, 2^40016228 is an apocalyptic number.

It is an amenable number.

40016228 is an abundant number, since it is smaller than the sum of its proper divisors (43497244).

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

40016228 is a wasteful number, since it uses less digits than its factorization.

40016228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62171 (or 62169 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 40016228 is about 6325.8381262881. The cubic root of 40016228 is about 342.0414322318.

The spelling of 40016228 in words is "forty million, sixteen thousand, two hundred twenty-eight".