40336890138 has 20 divisors (see below), whose sum is σ = 90384513450. Its totient is φ = 13445629992.

The previous prime is 40336890137. The next prime is 40336890151. The reversal of 40336890138 is 83109863304.

40336890138 is a `hidden beast` number, since 403 + 36 + 89 + 0 + 138 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38483845929 + 1853044209 = 196173^2 + 43047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40336890093 and 40336890102.

It is not an unprimeable number, because it can be changed into a prime (40336890137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 124496413 + ... + 124496736.

Almost surely, 2^40336890138 is an apocalyptic number.

40336890138 is an abundant number, since it is smaller than the sum of its proper divisors (50047623312).

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

40336890138 is a wasteful number, since it uses less digits than its factorization.

40336890138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248993163 (or 248993154 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 40336890138 in words is "forty billion, three hundred thirty-six million, eight hundred ninety thousand, one hundred thirty-eight".