447746148 has 18 divisors (see below), whose sum is σ = 1131802854. Its totient is φ = 149248704.

The previous prime is 447746141. The next prime is 447746149. The reversal of 447746148 is 841647744.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 313927524 + 133818624 = 17718^2 + 11568^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×447746148² = 400953226097675808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (447746141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6218661 + ... + 6218732.

Almost surely, 2^447746148 is an apocalyptic number.

It is an amenable number.

447746148 is an abundant number, since it is smaller than the sum of its proper divisors (684056706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447746148 is a wasteful number, since it uses less digits than its factorization.

447746148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12437403 (or 12437398 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 447746148 is about 21160.0129489563. The cubic root of 447746148 is about 765.0279215748.

It can be divided in two parts, 4477 and 46148, that added together give a 4-th power (50625 = 15⁴).

The spelling of 447746148 in words is "four hundred forty-seven million, seven hundred forty-six thousand, one hundred forty-eight".