445223401 has 8 divisors (see below), whose sum is σ = 511464704. Its totient is φ = 379641600.

The previous prime is 445223393. The next prime is 445223477. The reversal of 445223401 is 104322544.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 445223401 - 2³ = 445223393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445223491) 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, 163425 + ... + 166126.

It is an arithmetic number, because the mean of its divisors is an integer number (63933088).

Almost surely, 2^445223401 is an apocalyptic number.

It is an amenable number.

445223401 is a deficient number, since it is larger than the sum of its proper divisors (66241303).

445223401 is a wasteful number, since it uses less digits than its factorization.

445223401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329751.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 445223401 is about 21100.3175568521. The cubic root of 445223401 is about 763.5884094857.

Adding to 445223401 its reverse (104322544), we get a palindrome (549545945).

The spelling of 445223401 in words is "four hundred forty-five million, two hundred twenty-three thousand, four hundred one".