40523205 has 16 divisors (see below), whose sum is σ = 65507904. Its totient is φ = 21388800.

The previous prime is 40523201. The next prime is 40523207. The reversal of 40523205 is 50232504.

40523205 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 40523205 - 2² = 40523201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40523201) 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 15 ways as a sum of consecutive naturals, for example, 12471 + ... + 15380.

It is an arithmetic number, because the mean of its divisors is an integer number (4094244).

Almost surely, 2^40523205 is an apocalyptic number.

It is an amenable number.

40523205 is a deficient number, since it is larger than the sum of its proper divisors (24984699).

40523205 is a wasteful number, since it uses less digits than its factorization.

40523205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27956.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40523205 is about 6365.7839265875. The cubic root of 40523205 is about 343.4798481299.

Adding to 40523205 its reverse (50232504), we get a palindrome (90755709).

The spelling of 40523205 in words is "forty million, five hundred twenty-three thousand, two hundred five".