40166745 has 8 divisors (see below), whose sum is σ = 64266816. Its totient is φ = 21422256.

The previous prime is 40166743. The next prime is 40166761. The reversal of 40166745 is 54766104.

40166745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40166745 - 2¹ = 40166743 is a prime.

It is a super-2 number, since 2×40166745² = 3226734807790050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40166743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1338877 + ... + 1338906.

It is an arithmetic number, because the mean of its divisors is an integer number (8033352).

Almost surely, 2^40166745 is an apocalyptic number.

It is an amenable number.

40166745 is a deficient number, since it is larger than the sum of its proper divisors (24100071).

40166745 is a wasteful number, since it uses less digits than its factorization.

40166745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677791.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 40166745 is about 6337.7239605398. The cubic root of 40166745 is about 342.4697470925.

The spelling of 40166745 in words is "forty million, one hundred sixty-six thousand, seven hundred forty-five".