445255221342 has 32 divisors (see below), whose sum is σ = 895729693824. Its totient is φ = 147550428000.

The previous prime is 445255221329. The next prime is 445255221343. The reversal of 445255221342 is 243122552544.

It is a self number, because there is not a number n which added to its sum of digits gives 445255221342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445255221343) 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, 704592 + ... + 1177692.

It is an arithmetic number, because the mean of its divisors is an integer number (27991552932).

Almost surely, 2^445255221342 is an apocalyptic number.

445255221342 is an abundant number, since it is smaller than the sum of its proper divisors (450474472482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445255221342 is a wasteful number, since it uses less digits than its factorization.

445255221342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474024.

The product of its digits is 384000, while the sum is 39.

Adding to 445255221342 its reverse (243122552544), we get a palindrome (688377773886).

The spelling of 445255221342 in words is "four hundred forty-five billion, two hundred fifty-five million, two hundred twenty-one thousand, three hundred forty-two".