40990000681 has 16 divisors (see below), whose sum is σ = 47121408000. Its totient is φ = 34928017488.

The previous prime is 40990000673. The next prime is 40990000703. The reversal of 40990000681 is 18600009904.

40990000681 is a nontrivial binomial coefficient, being equal to C(286322, 2).

It is not a de Polignac number, because 40990000681 - 2³ = 40990000673 is a prime.

It is a super-2 number, since 2×40990000681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40990000681.

It is not an unprimeable number, because it can be changed into a prime (40990000621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981676 + ... + 1022578.

It is an arithmetic number, because the mean of its divisors is an integer number (2945088000).

Almost surely, 2^40990000681 is an apocalyptic number.

40990000681 is the 286321-st triangular number and also the 143161-st hexagonal number.

40990000681 is the 95441-st centered nonagonal number.

It is an amenable number.

40990000681 is a deficient number, since it is larger than the sum of its proper divisors (6131407319).

40990000681 is a wasteful number, since it uses less digits than its factorization.

40990000681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41748.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 40990000681 in words is "forty billion, nine hundred ninety million, six hundred eighty-one", and thus it is an aban number.