447023390 has 32 divisors (see below), whose sum is σ = 878846976. Its totient is φ = 162358560.

The previous prime is 447023387. The next prime is 447023407. The reversal of 447023390 is 93320744.

It is a super-2 number, since 2×447023390² = 399659822414184200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115019 + ... + 118841.

It is an arithmetic number, because the mean of its divisors is an integer number (27463968).

Almost surely, 2^447023390 is an apocalyptic number.

447023390 is a deficient number, since it is larger than the sum of its proper divisors (431823586).

447023390 is a wasteful number, since it uses less digits than its factorization.

447023390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 447023390 is about 21142.9276591488. The cubic root of 447023390 is about 764.6160603480.

The spelling of 447023390 in words is "four hundred forty-seven million, twenty-three thousand, three hundred ninety".