440322145 has 16 divisors (see below), whose sum is σ = 539203392. Its totient is φ = 345067840.

The previous prime is 440322121. The next prime is 440322173. The reversal of 440322145 is 541223044.

It is a happy number.

It is not a de Polignac number, because 440322145 - 2⁹ = 440321633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288354 + ... + 289876.

It is an arithmetic number, because the mean of its divisors is an integer number (33700212).

Almost surely, 2^440322145 is an apocalyptic number.

It is an amenable number.

440322145 is a deficient number, since it is larger than the sum of its proper divisors (98881247).

440322145 is a wasteful number, since it uses less digits than its factorization.

440322145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 440322145 is about 20983.8543885531. The cubic root of 440322145 is about 760.7760684033.

Adding to 440322145 its reverse (541223044), we get a palindrome (981545189).

The spelling of 440322145 in words is "four hundred forty million, three hundred twenty-two thousand, one hundred forty-five".