40385223 has 10 divisors (see below), whose sum is σ = 60328664. Its totient is φ = 26923428.

The previous prime is 40385221. The next prime is 40385249. The reversal of 40385223 is 32258304.

40385223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40385223 - 2¹ = 40385221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40385221) 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 9 ways as a sum of consecutive naturals, for example, 249211 + ... + 249372.

Almost surely, 2^40385223 is an apocalyptic number.

40385223 is a deficient number, since it is larger than the sum of its proper divisors (19943441).

40385223 is an equidigital number, since it uses as much as digits as its factorization.

40385223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498595 (or 498586 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40385223 is about 6354.9368997654. The cubic root of 40385223 is about 343.0895538050.

It can be divided in two parts, 4038 and 5223, that added together give a cube (9261 = 21³).

The spelling of 40385223 in words is "forty million, three hundred eighty-five thousand, two hundred twenty-three".