1447057664 has 36 divisors (see below), whose sum is σ = 3110659356. Its totient is φ = 667871232.

The previous prime is 1447057657. The next prime is 1447057709. The reversal of 1447057664 is 4667507441.

It can be written as a sum of positive squares in 2 ways, for example, as 912523264 + 534534400 = 30208^2 + 23120^2 .

It is a super-2 number, since 2×1447057664² = 4187951765882273792, which contains 22 as substring.

It is a congruent number.

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, 214079 + ... + 220734.

Almost surely, 2^1447057664 is an apocalyptic number.

It is an amenable number.

1447057664 is an abundant number, since it is smaller than the sum of its proper divisors (1663601692).

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

1447057664 is an equidigital number, since it uses as much as digits as its factorization.

1447057664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434842 (or 434828 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 1447057664 is about 38040.2111455759. The cubic root of 1447057664 is about 1131.0850944305.

The spelling of 1447057664 in words is "one billion, four hundred forty-seven million, fifty-seven thousand, six hundred sixty-four".