40107766 has 4 divisors (see below), whose sum is σ = 60161652. Its totient is φ = 20053882.

The previous prime is 40107757. The next prime is 40107797. The reversal of 40107766 is 66770104.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10026940 + ... + 10026943.

It is an arithmetic number, because the mean of its divisors is an integer number (15040413).

Almost surely, 2^40107766 is an apocalyptic number.

40107766 is a deficient number, since it is larger than the sum of its proper divisors (20053886).

40107766 is a wasteful number, since it uses less digits than its factorization.

40107766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20053885.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 40107766 is about 6333.0692401078. The cubic root of 40107766 is about 342.3020427102.

The spelling of 40107766 in words is "forty million, one hundred seven thousand, seven hundred sixty-six".