440520442 has 8 divisors (see below), whose sum is σ = 661161600. Its totient is φ = 220133244.

The previous prime is 440520419. The next prime is 440520463. The reversal of 440520442 is 244025044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59092 + ... + 66127.

It is an arithmetic number, because the mean of its divisors is an integer number (82645200).

Almost surely, 2^440520442 is an apocalyptic number.

440520442 is a deficient number, since it is larger than the sum of its proper divisors (220641158).

440520442 is a wasteful number, since it uses less digits than its factorization.

440520442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126980.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 440520442 is about 20988.5788466013. The cubic root of 440520442 is about 760.8902552346.

Adding to 440520442 its reverse (244025044), we get a palindrome (684545486).

The spelling of 440520442 in words is "four hundred forty million, five hundred twenty thousand, four hundred forty-two".