442613145 has 32 divisors (see below), whose sum is σ = 770095872. Its totient is φ = 215776512.

The previous prime is 442613131. The next prime is 442613251. The reversal of 442613145 is 541316244.

It is not a de Polignac number, because 442613145 - 2¹⁸ = 442351001 is a prime.

It is a super-2 number, since 2×442613145² = 391812792253582050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9067 + ... + 31103.

It is an arithmetic number, because the mean of its divisors is an integer number (24065496).

Almost surely, 2^442613145 is an apocalyptic number.

It is an amenable number.

442613145 is a deficient number, since it is larger than the sum of its proper divisors (327482727).

442613145 is a wasteful number, since it uses less digits than its factorization.

442613145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22161.

The product of its digits is 11520, while the sum is 30.

The square root of 442613145 is about 21038.3731547855. The cubic root of 442613145 is about 762.0932281687.

Adding to 442613145 its reverse (541316244), we get a palindrome (983929389).

It can be divided in two parts, 4426 and 13145, that added together give a palindrome (17571).

The spelling of 442613145 in words is "four hundred forty-two million, six hundred thirteen thousand, one hundred forty-five".