447905492 has 12 divisors (see below), whose sum is σ = 785852340. Its totient is φ = 223376256.

The previous prime is 447905459. The next prime is 447905527. The reversal of 447905492 is 294509744.

It can be written as a sum of positive squares in 2 ways, for example, as 222785476 + 225120016 = 14926^2 + 15004^2 .

It is a super-4 number, since 4×447905492⁴ (a number of 36 digits) contains 4444 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142373 + ... + 145484.

It is an arithmetic number, because the mean of its divisors is an integer number (65487695).

Almost surely, 2^447905492 is an apocalyptic number.

It is an amenable number.

447905492 is a deficient number, since it is larger than the sum of its proper divisors (337946848).

447905492 is a wasteful number, since it uses less digits than its factorization.

447905492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288250 (or 288248 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 447905492 is about 21163.7778291117. Note that the first 3 decimals coincide. The cubic root of 447905492 is about 765.1186635809.

The spelling of 447905492 in words is "four hundred forty-seven million, nine hundred five thousand, four hundred ninety-two".