40555366 has 8 divisors (see below), whose sum is σ = 61101720. Its totient is φ = 20188128.

The previous prime is 40555363. The next prime is 40555379. The reversal of 40555366 is 66355504.

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

It is a super-2 number, since 2×40555366² = 3289475422787912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40555363) 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, 44211 + ... + 45118.

It is an arithmetic number, because the mean of its divisors is an integer number (7637715).

Almost surely, 2^40555366 is an apocalyptic number.

40555366 is a deficient number, since it is larger than the sum of its proper divisors (20546354).

40555366 is a wasteful number, since it uses less digits than its factorization.

40555366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89558.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 40555366 is about 6368.3095088100. The cubic root of 40555366 is about 343.5706910129.

The spelling of 40555366 in words is "forty million, five hundred fifty-five thousand, three hundred sixty-six".