1447993904 has 60 divisors (see below), whose sum is σ = 3455531064. Its totient is φ = 584059392.

The previous prime is 1447993903. The next prime is 1447993949. The reversal of 1447993904 is 4093997441.

It is a super-2 number, since 2×1447993904² = 4193372692042322432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1447993903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40994 + ... + 67649.

Almost surely, 2^1447993904 is an apocalyptic number.

1447993904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1447993904 is an abundant number, since it is smaller than the sum of its proper divisors (2007537160).

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

1447993904 is a wasteful number, since it uses less digits than its factorization.

1447993904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108682 (or 108669 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1447993904 is about 38052.5150811349. The cubic root of 1447993904 is about 1131.3289775493.

The spelling of 1447993904 in words is "one billion, four hundred forty-seven million, nine hundred ninety-three thousand, nine hundred four".