40033155 has 8 divisors (see below), whose sum is σ = 64053072. Its totient is φ = 21351008.

The previous prime is 40033153. The next prime is 40033163. The reversal of 40033155 is 55133004.

40033155 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 a cyclic number.

It is not a de Polignac number, because 40033155 - 2¹ = 40033153 is a prime.

It is a super-4 number, since 4×40033155⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (40033151) 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, 1334424 + ... + 1334453.

It is an arithmetic number, because the mean of its divisors is an integer number (8006634).

Almost surely, 2^40033155 is an apocalyptic number.

40033155 is a deficient number, since it is larger than the sum of its proper divisors (24019917).

40033155 is a wasteful number, since it uses less digits than its factorization.

40033155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668885.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 40033155 is about 6327.1759103094. The cubic root of 40033155 is about 342.0896536613.

Adding to 40033155 its reverse (55133004), we get a palindrome (95166159).

The spelling of 40033155 in words is "forty million, thirty-three thousand, one hundred fifty-five".