447138248 has 16 divisors (see below), whose sum is σ = 882510000. Its totient is φ = 211802256.

The previous prime is 447138221. The next prime is 447138259. The reversal of 447138248 is 842831744.

It is a happy number.

It is a super-2 number, since 2×447138248² = 399865225649019008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1470698 + ... + 1471001.

It is an arithmetic number, because the mean of its divisors is an integer number (55156875).

Almost surely, 2^447138248 is an apocalyptic number.

It is an amenable number.

447138248 is a deficient number, since it is larger than the sum of its proper divisors (435371752).

447138248 is a wasteful number, since it uses less digits than its factorization.

447138248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941724 (or 2941720 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 447138248 is about 21145.6437121219. The cubic root of 447138248 is about 764.6815414487.

The spelling of 447138248 in words is "four hundred forty-seven million, one hundred thirty-eight thousand, two hundred forty-eight".