40223445 has 16 divisors (see below), whose sum is σ = 68143680. Its totient is φ = 20190464.

The previous prime is 40223441. The next prime is 40223471. The reversal of 40223445 is 54432204.

40223445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40223445 - 2² = 40223441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223441) 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, 78615 + ... + 79124.

It is an arithmetic number, because the mean of its divisors is an integer number (4258980).

Almost surely, 2^40223445 is an apocalyptic number.

It is an amenable number.

40223445 is a deficient number, since it is larger than the sum of its proper divisors (27920235).

40223445 is a wasteful number, since it uses less digits than its factorization.

40223445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157764.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 40223445 is about 6342.1955977406. The cubic root of 40223445 is about 342.6308165285.

Adding to 40223445 its reverse (54432204), we get a palindrome (94655649).

The spelling of 40223445 in words is "forty million, two hundred twenty-three thousand, four hundred forty-five".