445332142 has 8 divisors (see below), whose sum is σ = 673097832. Its totient is φ = 220966200.

The previous prime is 445332133. The next prime is 445332161. The reversal of 445332142 is 241233544.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 445332142.

It is a congruent number.

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, 849609 + ... + 850132.

It is an arithmetic number, because the mean of its divisors is an integer number (84137229).

Almost surely, 2^445332142 is an apocalyptic number.

445332142 is a deficient number, since it is larger than the sum of its proper divisors (227765690).

445332142 is a wasteful number, since it uses less digits than its factorization.

445332142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699874.

The product of its digits is 11520, while the sum is 28.

The square root of 445332142 is about 21102.8941617021. The cubic root of 445332142 is about 763.6505704952.

Adding to 445332142 its reverse (241233544), we get a palindrome (686565686).

The spelling of 445332142 in words is "four hundred forty-five million, three hundred thirty-two thousand, one hundred forty-two".