40223155 has 8 divisors (see below), whose sum is σ = 55163232. Its totient is φ = 27581568.

The previous prime is 40223153. The next prime is 40223233. The reversal of 40223155 is 55132204.

40223155 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 40223155 - 2¹ = 40223153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40223153) 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, 574582 + ... + 574651.

It is an arithmetic number, because the mean of its divisors is an integer number (6895404).

Almost surely, 2^40223155 is an apocalyptic number.

40223155 is a deficient number, since it is larger than the sum of its proper divisors (14940077).

40223155 is a wasteful number, since it uses less digits than its factorization.

40223155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149245.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40223155 is about 6342.1727349545. The cubic root of 40223155 is about 342.6299931018.

Adding to 40223155 its reverse (55132204), we get a palindrome (95355359).

The spelling of 40223155 in words is "forty million, two hundred twenty-three thousand, one hundred fifty-five".