445455222340 has 24 divisors (see below), whose sum is σ = 936220904640. Its totient is φ = 178036386528.

The previous prime is 445455222299. The next prime is 445455222343. The reversal of 445455222340 is 43222554544.

It is a junction number, because it is equal to n+sod(n) for n = 445455222293 and 445455222302.

It is not an unprimeable number, because it can be changed into a prime (445455222343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9081330 + ... + 9130249.

It is an arithmetic number, because the mean of its divisors is an integer number (39009204360).

Almost surely, 2^445455222340 is an apocalyptic number.

It is an amenable number.

445455222340 is an abundant number, since it is smaller than the sum of its proper divisors (490765682300).

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

445455222340 is a wasteful number, since it uses less digits than its factorization.

445455222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18212811 (or 18212809 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

Adding to 445455222340 its reverse (43222554544), we get a palindrome (488677776884).

The spelling of 445455222340 in words is "four hundred forty-five billion, four hundred fifty-five million, two hundred twenty-two thousand, three hundred forty".