447727128 has 32 divisors (see below), whose sum is σ = 1133491200. Its totient is φ = 147352608.

The previous prime is 447727117. The next prime is 447727139. The reversal of 447727128 is 821727744.

It is an interprime number because it is at equal distance from previous prime (447727117) and next prime (447727139).

It is a super-2 number, since 2×447727128² = 400919162294256768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 447727128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116176 + ... + 119967.

It is an arithmetic number, because the mean of its divisors is an integer number (35421600).

Almost surely, 2^447727128 is an apocalyptic number.

It is an amenable number.

447727128 is an abundant number, since it is smaller than the sum of its proper divisors (685764072).

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

447727128 is a wasteful number, since it uses less digits than its factorization.

447727128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236231 (or 236227 counting only the distinct ones).

The product of its digits is 175616, while the sum is 42.

The square root of 447727128 is about 21159.5635115661. The cubic root of 447727128 is about 765.0170887720.

The spelling of 447727128 in words is "four hundred forty-seven million, seven hundred twenty-seven thousand, one hundred twenty-eight".