1447055840 has 24 divisors (see below), whose sum is σ = 3418669800. Its totient is φ = 578822272.

The previous prime is 1447055839. The next prime is 1447055843. The reversal of 1447055840 is 485507441.

It is a junction number, because it is equal to n+sod(n) for n = 1447055794 and 1447055803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447055843) 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 3 ways as a sum of consecutive naturals, for example, 4521890 + ... + 4522209.

It is an arithmetic number, because the mean of its divisors is an integer number (142444575).

Almost surely, 2^1447055840 is an apocalyptic number.

1447055840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1447055840 is an abundant number, since it is smaller than the sum of its proper divisors (1971613960).

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

1447055840 is an equidigital number, since it uses as much as digits as its factorization.

1447055840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044114 (or 9044106 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 1447055840 is about 38040.1871709381. The cubic root of 1447055840 is about 1131.0846191903.

The spelling of 1447055840 in words is "one billion, four hundred forty-seven million, fifty-five thousand, eight hundred forty".