440542145 has 8 divisors (see below), whose sum is σ = 528880320. Its totient is φ = 352280560.

The previous prime is 440542129. The next prime is 440542169. The reversal of 440542145 is 541245044.

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

It is not a de Polignac number, because 440542145 - 2⁴ = 440542129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5621 + ... + 30210.

It is an arithmetic number, because the mean of its divisors is an integer number (66110040).

Almost surely, 2^440542145 is an apocalyptic number.

It is an amenable number.

440542145 is a deficient number, since it is larger than the sum of its proper divisors (88338175).

440542145 is a wasteful number, since it uses less digits than its factorization.

440542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38295.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 440542145 is about 20989.0958595172. The cubic root of 440542145 is about 760.9027505533.

Adding to 440542145 its reverse (541245044), we get a palindrome (981787189).

The spelling of 440542145 in words is "four hundred forty million, five hundred forty-two thousand, one hundred forty-five".