440023045 has 16 divisors (see below), whose sum is σ = 658320768. Its totient is φ = 274299840.

The previous prime is 440023043. The next prime is 440023057. The reversal of 440023045 is 540320044.

It is a happy number.

It is not a de Polignac number, because 440023045 - 2¹ = 440023043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440023043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571074 + ... + 571843.

It is an arithmetic number, because the mean of its divisors is an integer number (41145048).

Almost surely, 2^440023045 is an apocalyptic number.

It is an amenable number.

440023045 is a deficient number, since it is larger than the sum of its proper divisors (218297723).

440023045 is a wasteful number, since it uses less digits than its factorization.

440023045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142940.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 440023045 is about 20976.7262698449. The cubic root of 440023045 is about 760.6037705628.

Adding to 440023045 its reverse (540320044), we get a palindrome (980343089).

The spelling of 440023045 in words is "four hundred forty million, twenty-three thousand, forty-five".