40555323 has 20 divisors (see below), whose sum is σ = 61183408. Its totient is φ = 26768880.

The previous prime is 40555309. The next prime is 40555331. The reversal of 40555323 is 32355504.

It is not a de Polignac number, because 40555323 - 2²¹ = 38458171 is a prime.

It is a super-3 number, since 3×40555323³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40555343) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5913 + ... + 10773.

Almost surely, 2^40555323 is an apocalyptic number.

40555323 is a deficient number, since it is larger than the sum of its proper divisors (20628085).

40555323 is a wasteful number, since it uses less digits than its factorization.

40555323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976 (or 4967 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 40555323 is about 6368.3061327169. The cubic root of 40555323 is about 343.5705695860.

The spelling of 40555323 in words is "forty million, five hundred fifty-five thousand, three hundred twenty-three".