40166477 has 4 divisors (see below), whose sum is σ = 43256220. Its totient is φ = 37076736.

The previous prime is 40166459. The next prime is 40166509. The reversal of 40166477 is 77466104.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23755876 + 16410601 = 4874^2 + 4051^2 .

It is a cyclic number.

It is not a de Polignac number, because 40166477 - 2¹⁶ = 40100941 is a prime.

It is a super-2 number, since 2×40166477² = 3226691749183058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40166177) 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, 1544852 + ... + 1544877.

It is an arithmetic number, because the mean of its divisors is an integer number (10814055).

Almost surely, 2^40166477 is an apocalyptic number.

It is an amenable number.

40166477 is a deficient number, since it is larger than the sum of its proper divisors (3089743).

40166477 is a wasteful number, since it uses less digits than its factorization.

40166477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089742.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 40166477 is about 6337.7028172675. The cubic root of 40166477 is about 342.4689854169.

The spelling of 40166477 in words is "forty million, one hundred sixty-six thousand, four hundred seventy-seven".