40223045 has 16 divisors (see below), whose sum is σ = 49375872. Its totient is φ = 31448640.

The previous prime is 40223011. The next prime is 40223047. The reversal of 40223045 is 54032204.

It is not a de Polignac number, because 40223045 - 2¹² = 40218949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42275 + ... + 43215.

It is an arithmetic number, because the mean of its divisors is an integer number (3085992).

Almost surely, 2^40223045 is an apocalyptic number.

It is an amenable number.

40223045 is a deficient number, since it is larger than the sum of its proper divisors (9152827).

40223045 is a wasteful number, since it uses less digits than its factorization.

40223045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40223045 is about 6342.1640628416. The cubic root of 40223045 is about 342.6296807665.

Adding to 40223045 its reverse (54032204), we get a palindrome (94255249).

The spelling of 40223045 in words is "forty million, two hundred twenty-three thousand, forty-five".