40707666 has 24 divisors (see below), whose sum is σ = 88545600. Its totient is φ = 13516056.

The previous prime is 40707661. The next prime is 40707697. The reversal of 40707666 is 66670704.

It is a super-2 number, since 2×40707666² = 3314228142335112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40707666.

It is not an unprimeable number, because it can be changed into a prime (40707661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435 + ... + 9033.

It is an arithmetic number, because the mean of its divisors is an integer number (3689400).

Almost surely, 2^40707666 is an apocalyptic number.

40707666 is an abundant number, since it is smaller than the sum of its proper divisors (47837934).

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

40707666 is a wasteful number, since it uses less digits than its factorization.

40707666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8870 (or 8867 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 40707666 is about 6380.2559509788. The cubic root of 40707666 is about 344.0002309806. Note that the first 3 decimals are identical.

The spelling of 40707666 in words is "forty million, seven hundred seven thousand, six hundred sixty-six".