40915223 has 4 divisors (see below), whose sum is σ = 40938648. Its totient is φ = 40891800.

The previous prime is 40915219. The next prime is 40915247. The reversal of 40915223 is 32251904.

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

It is a cyclic number.

It is not a de Polignac number, because 40915223 - 2² = 40915219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40915192 and 40915201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40915213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8861 + ... + 12662.

It is an arithmetic number, because the mean of its divisors is an integer number (10234662).

Almost surely, 2^40915223 is an apocalyptic number.

40915223 is a deficient number, since it is larger than the sum of its proper divisors (23425).

40915223 is a wasteful number, since it uses less digits than its factorization.

40915223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23424.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40915223 is about 6396.5008403032. The cubic root of 40915223 is about 344.5838937691.

The spelling of 40915223 in words is "forty million, nine hundred fifteen thousand, two hundred twenty-three".