40037866 has 16 divisors (see below), whose sum is σ = 65818368. Its totient is φ = 18115200.

The previous prime is 40037863. The next prime is 40037867. The reversal of 40037866 is 66873004.

It is not an unprimeable number, because it can be changed into a prime (40037861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826 + ... + 8986.

It is an arithmetic number, because the mean of its divisors is an integer number (4113648).

Almost surely, 2^40037866 is an apocalyptic number.

40037866 is a deficient number, since it is larger than the sum of its proper divisors (25780502).

40037866 is a wasteful number, since it uses less digits than its factorization.

40037866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 40037866 is about 6327.5481823531. The cubic root of 40037866 is about 342.1030718822.

The spelling of 40037866 in words is "forty million, thirty-seven thousand, eight hundred sixty-six".