40228728633 has 24 divisors (see below), whose sum is σ = 61175181600. Its totient is φ = 25404007104.

The previous prime is 40228728601. The next prime is 40228728637. The reversal of 40228728633 is 33682782204.

40228728633 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 8 + 7 + 2 + 8 + 633 = 666.

It is not a de Polignac number, because 40228728633 - 2⁵ = 40228728601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40228728637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1709773 + ... + 1733141.

It is an arithmetic number, because the mean of its divisors is an integer number (2548965900).

Almost surely, 2^40228728633 is an apocalyptic number.

It is an amenable number.

40228728633 is a deficient number, since it is larger than the sum of its proper divisors (20946452967).

40228728633 is a wasteful number, since it uses less digits than its factorization.

40228728633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33461 (or 33458 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 40228728633 in words is "forty billion, two hundred twenty-eight million, seven hundred twenty-eight thousand, six hundred thirty-three".