45340223 has 4 divisors (see below), whose sum is σ = 45355728. Its totient is φ = 45324720.

The previous prime is 45340181. The next prime is 45340231. The reversal of 45340223 is 32204354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45340223 - 2⁶ = 45340159 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 (45340423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886 + ... + 9707.

It is an arithmetic number, because the mean of its divisors is an integer number (11338932).

Almost surely, 2^45340223 is an apocalyptic number.

45340223 is a deficient number, since it is larger than the sum of its proper divisors (15505).

45340223 is a wasteful number, since it uses less digits than its factorization.

45340223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15504.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 45340223 is about 6733.5149067927. The cubic root of 45340223 is about 356.5834785269.

Adding to 45340223 its reverse (32204354), we get a palindrome (77544577).

The spelling of 45340223 in words is "forty-five million, three hundred forty thousand, two hundred twenty-three".