440611423 has 24 divisors (see below), whose sum is σ = 537304032. Its totient is φ = 353869824.

The previous prime is 440611421. The next prime is 440611477. The reversal of 440611423 is 324116044.

It is not a de Polignac number, because 440611423 - 2¹ = 440611421 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 (440611421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713811 + ... + 714427.

It is an arithmetic number, because the mean of its divisors is an integer number (22387668).

Almost surely, 2^440611423 is an apocalyptic number.

440611423 is a deficient number, since it is larger than the sum of its proper divisors (96692609).

440611423 is a wasteful number, since it uses less digits than its factorization.

440611423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 440611423 is about 20990.7461277583. The cubic root of 440611423 is about 760.9426340305.

Adding to 440611423 its reverse (324116044), we get a palindrome (764727467).

The spelling of 440611423 in words is "four hundred forty million, six hundred eleven thousand, four hundred twenty-three".