440540523 has 12 divisors (see below), whose sum is σ = 638637168. Its totient is φ = 292631760.

The previous prime is 440540501. The next prime is 440540539. The reversal of 440540523 is 325045044.

It is not a de Polignac number, because 440540523 - 2⁵ = 440540491 is a prime.

It is a super-2 number, since 2×440540523² = 388151904810227058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (440540543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85863 + ... + 90848.

It is an arithmetic number, because the mean of its divisors is an integer number (53219764).

Almost surely, 2^440540523 is an apocalyptic number.

440540523 is a deficient number, since it is larger than the sum of its proper divisors (198096645).

440540523 is a wasteful number, since it uses less digits than its factorization.

440540523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176994 (or 176991 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 440540523 is about 20989.0572203708. The cubic root of 440540523 is about 760.9018167147.

Adding to 440540523 its reverse (325045044), we get a palindrome (765585567).

The spelling of 440540523 in words is "four hundred forty million, five hundred forty thousand, five hundred twenty-three".