445420445398 has 4 divisors (see below), whose sum is σ = 668130668100. Its totient is φ = 222710222698.

The previous prime is 445420445377. The next prime is 445420445411. The reversal of 445420445398 is 893544024544.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111355111348 + ... + 111355111351.

It is an arithmetic number, because the mean of its divisors is an integer number (167032667025).

Almost surely, 2^445420445398 is an apocalyptic number.

445420445398 is a deficient number, since it is larger than the sum of its proper divisors (222710222702).

445420445398 is a wasteful number, since it uses less digits than its factorization.

445420445398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222710222701.

The product of its (nonzero) digits is 11059200, while the sum is 52.

The spelling of 445420445398 in words is "four hundred forty-five billion, four hundred twenty million, four hundred forty-five thousand, three hundred ninety-eight".