445680347 has 16 divisors (see below), whose sum is σ = 540688320. Its totient is φ = 358622208.

The previous prime is 445680343. The next prime is 445680349. The reversal of 445680347 is 743086544.

It is not a de Polignac number, because 445680347 - 2² = 445680343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445680343) 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, 44093 + ... + 53249.

It is an arithmetic number, because the mean of its divisors is an integer number (33793020).

Almost surely, 2^445680347 is an apocalyptic number.

445680347 is a deficient number, since it is larger than the sum of its proper divisors (95007973).

445680347 is a wasteful number, since it uses less digits than its factorization.

445680347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590.

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 445680347 is about 21111.1427213214. The cubic root of 445680347 is about 763.8495513215.

The spelling of 445680347 in words is "four hundred forty-five million, six hundred eighty thousand, three hundred forty-seven".