445420270 has 8 divisors (see below), whose sum is σ = 801756504. Its totient is φ = 178168104.

The previous prime is 445420189. The next prime is 445420279. The reversal of 445420270 is 72024544.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445420279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22271004 + ... + 22271023.

It is an arithmetic number, because the mean of its divisors is an integer number (100219563).

Almost surely, 2^445420270 is an apocalyptic number.

445420270 is a deficient number, since it is larger than the sum of its proper divisors (356336234).

445420270 is a wasteful number, since it uses less digits than its factorization.

445420270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44542034.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 445420270 is about 21104.9821132357. The cubic root of 445420270 is about 763.7009408085.

The spelling of 445420270 in words is "four hundred forty-five million, four hundred twenty thousand, two hundred seventy".