442316545 has 16 divisors (see below), whose sum is σ = 586014912. Its totient is φ = 317805760.

The previous prime is 442316543. The next prime is 442316549. The reversal of 442316545 is 545613244.

It is not a de Polignac number, because 442316545 - 2¹ = 442316543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442316545.

It is not an unprimeable number, because it can be changed into a prime (442316543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43882 + ... + 53011.

It is an arithmetic number, because the mean of its divisors is an integer number (36625932).

Almost surely, 2^442316545 is an apocalyptic number.

It is an amenable number.

442316545 is a deficient number, since it is larger than the sum of its proper divisors (143698367).

442316545 is a wasteful number, since it uses less digits than its factorization.

442316545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96992.

The product of its digits is 57600, while the sum is 34.

The square root of 442316545 is about 21031.3229493534. The cubic root of 442316545 is about 761.9229610760.

Adding to 442316545 its reverse (545613244), we get a palindrome (987929789).

The spelling of 442316545 in words is "four hundred forty-two million, three hundred sixteen thousand, five hundred forty-five".