440540522 has 4 divisors (see below), whose sum is σ = 660810786. Its totient is φ = 220270260.

The previous prime is 440540501. The next prime is 440540539. The reversal of 440540522 is 225045044.

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

It can be written as a sum of positive squares in only one way, i.e., 440538121 + 2401 = 20989^2 + 49^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440540491 and 440540500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110135129 + ... + 110135132.

Almost surely, 2^440540522 is an apocalyptic number.

440540522 is a deficient number, since it is larger than the sum of its proper divisors (220270264).

440540522 is a wasteful number, since it uses less digits than its factorization.

440540522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220270263.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 440540522 is about 20989.0571965489. The cubic root of 440540522 is about 760.9018161390.

Adding to 440540522 its reverse (225045044), we get a palindrome (665585566).

The spelling of 440540522 in words is "four hundred forty million, five hundred forty thousand, five hundred twenty-two".