447013378 has 20 divisors (see below), whose sum is σ = 782235270. Its totient is φ = 191575104.

The previous prime is 447013339. The next prime is 447013451. The reversal of 447013378 is 873310744.

It can be written as a sum of positive squares in only one way, i.e., 235223569 + 211789809 = 15337^2 + 14553^2 .

It is a super-2 number, since 2×447013378² = 399641920221941768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41743 + ... + 51346.

Almost surely, 2^447013378 is an apocalyptic number.

447013378 is a deficient number, since it is larger than the sum of its proper divisors (335221892).

447013378 is an frugal number, since it uses more digits than its factorization.

447013378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93119 (or 93098 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 447013378 is about 21142.6908883425. The cubic root of 447013378 is about 764.6103519270.

The spelling of 447013378 in words is "four hundred forty-seven million, thirteen thousand, three hundred seventy-eight".