40130866 has 12 divisors (see below), whose sum is σ = 61871418. Its totient is φ = 19521792.

The previous prime is 40130843. The next prime is 40130879. The reversal of 40130866 is 66803104.

It can be written as a sum of positive squares in 3 ways, for example, as 33396841 + 6734025 = 5779^2 + 2595^2 .

It is a super-2 number, since 2×40130866² = 3220972811819912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4591 + ... + 10066.

Almost surely, 2^40130866 is an apocalyptic number.

40130866 is a deficient number, since it is larger than the sum of its proper divisors (21740552).

40130866 is a wasteful number, since it uses less digits than its factorization.

40130866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14733 (or 14696 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40130866 is about 6334.8927378449. The cubic root of 40130866 is about 342.3677461921.

The spelling of 40130866 in words is "forty million, one hundred thirty thousand, eight hundred sixty-six".