447542664 has 32 divisors (see below), whose sum is σ = 1129128000. Its totient is φ = 147811392.

The previous prime is 447542659. The next prime is 447542677. The reversal of 447542664 is 466245744.

It is a super-2 number, since 2×447542664² = 400588872200433792, which contains 22 as substring.

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, 82924 + ... + 88155.

It is an arithmetic number, because the mean of its divisors is an integer number (35285250).

Almost surely, 2^447542664 is an apocalyptic number.

It is an amenable number.

447542664 is an abundant number, since it is smaller than the sum of its proper divisors (681585336).

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

447542664 is a wasteful number, since it uses less digits than its factorization.

447542664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171197 (or 171193 counting only the distinct ones).

The product of its digits is 645120, while the sum is 42.

The square root of 447542664 is about 21155.2041824228. The cubic root of 447542664 is about 764.9120117521.

The spelling of 447542664 in words is "four hundred forty-seven million, five hundred forty-two thousand, six hundred sixty-four".