40971223 has 4 divisors (see below), whose sum is σ = 41266120. Its totient is φ = 40676328.

The previous prime is 40971221. The next prime is 40971233. The reversal of 40971223 is 32217904.

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 40971223 - 2¹ = 40971221 is a prime.

It is a super-2 number, since 2×40971223² = 3357282228231458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40971191 and 40971200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40971221) 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, 147240 + ... + 147517.

It is an arithmetic number, because the mean of its divisors is an integer number (10316530).

Almost surely, 2^40971223 is an apocalyptic number.

40971223 is a deficient number, since it is larger than the sum of its proper divisors (294897).

40971223 is a wasteful number, since it uses less digits than its factorization.

40971223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294896.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40971223 is about 6400.8767368229. The cubic root of 40971223 is about 344.7410308901.

The spelling of 40971223 in words is "forty million, nine hundred seventy-one thousand, two hundred twenty-three".