40511223 has 12 divisors (see below), whose sum is σ = 58574880. Its totient is φ = 26980416.

The previous prime is 40511213. The next prime is 40511269. The reversal of 40511223 is 32211504.

It is not a de Polignac number, because 40511223 - 2¹² = 40507127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40511196 and 40511205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40511213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11890 + ... + 14912.

It is an arithmetic number, because the mean of its divisors is an integer number (4881240).

Almost surely, 2^40511223 is an apocalyptic number.

40511223 is a deficient number, since it is larger than the sum of its proper divisors (18063657).

40511223 is a wasteful number, since it uses less digits than its factorization.

40511223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40511223 is about 6364.8427317570. The cubic root of 40511223 is about 343.4459911399.

Adding to 40511223 its reverse (32211504), we get a palindrome (72722727).

It can be divided in two parts, 405 and 11223, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 40511223 in words is "forty million, five hundred eleven thousand, two hundred twenty-three".