40228536838 has 16 divisors (see below), whose sum is σ = 69607724544. Its totient is φ = 17079671880.

The previous prime is 40228536827. The next prime is 40228536917. The reversal of 40228536838 is 83863582204.

It is a super-2 number, since 2×40228536838² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40228536791 and 40228536800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13425918 + ... + 13428913.

It is an arithmetic number, because the mean of its divisors is an integer number (4350482784).

Almost surely, 2^40228536838 is an apocalyptic number.

40228536838 is a deficient number, since it is larger than the sum of its proper divisors (29379187706).

40228536838 is a wasteful number, since it uses less digits than its factorization.

40228536838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26854947.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 40228536838 in words is "forty billion, two hundred twenty-eight million, five hundred thirty-six thousand, eight hundred thirty-eight".