40000766 has 8 divisors (see below), whose sum is σ = 64616664. Its totient is φ = 18461880.

The previous prime is 40000759. The next prime is 40000769. The reversal of 40000766 is 66700004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40000766² = 3200122561173512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769220 + ... + 769271.

It is an arithmetic number, because the mean of its divisors is an integer number (8077083).

Almost surely, 2^40000766 is an apocalyptic number.

40000766 is a deficient number, since it is larger than the sum of its proper divisors (24615898).

40000766 is a wasteful number, since it uses less digits than its factorization.

40000766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538506.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40000766 is about 6324.6158776640. The cubic root of 40000766 is about 341.9973723907.

It can be divided in two parts, 400007 and 66, that multiplied together give a palindrome (26400462).

The spelling of 40000766 in words is "forty million, seven hundred sixty-six", and thus it is an aban number.