1447694980 has 48 divisors (see below), whose sum is σ = 3200529024. Its totient is φ = 548979200.

The previous prime is 1447694923. The next prime is 1447694981. The reversal of 1447694980 is 894967441.

It is not an unprimeable number, because it can be changed into a prime (1447694981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38055 + ... + 65905.

It is an arithmetic number, because the mean of its divisors is an integer number (66677688).

Almost surely, 2^1447694980 is an apocalyptic number.

1447694980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1447694980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600264512).

1447694980 is an abundant number, since it is smaller than the sum of its proper divisors (1752834044).

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

1447694980 is a wasteful number, since it uses less digits than its factorization.

1447694980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27996 (or 27994 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 1447694980 is about 38048.5870959751. The cubic root of 1447694980 is about 1131.2511216374.

The spelling of 1447694980 in words is "one billion, four hundred forty-seven million, six hundred ninety-four thousand, nine hundred eighty".