40228016 has 20 divisors (see below), whose sum is σ = 82044600. Its totient is φ = 19055232.

The previous prime is 40227983. The next prime is 40228043. The reversal of 40228016 is 61082204.

It is a junction number, because it is equal to n+sod(n) for n = 40227982 and 40228000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65861 + ... + 66468.

It is an arithmetic number, because the mean of its divisors is an integer number (4102230).

Almost surely, 2^40228016 is an apocalyptic number.

It is an amenable number.

40228016 is an abundant number, since it is smaller than the sum of its proper divisors (41816584).

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

40228016 is a wasteful number, since it uses less digits than its factorization.

40228016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132356 (or 132350 counting only the distinct ones).

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

The square root of 40228016 is about 6342.5559516649. Note that the first 3 decimals coincide. The cubic root of 40228016 is about 342.6437949141.

The spelling of 40228016 in words is "forty million, two hundred twenty-eight thousand, sixteen".