1447201872 has 30 divisors (see below), whose sum is σ = 4050155642. Its totient is φ = 482400576.

The previous prime is 1447201871. The next prime is 1447201897. The reversal of 1447201872 is 2781027441.

1447201872 is a `hidden beast` number, since 1 + 4 + 472 + 0 + 187 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1284792336 + 162409536 = 35844^2 + 12744^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447201871) 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 5 ways as a sum of consecutive naturals, for example, 5024863 + ... + 5025150.

Almost surely, 2^1447201872 is an apocalyptic number.

1447201872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1447201872 is an abundant number, since it is smaller than the sum of its proper divisors (2602953770).

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

1447201872 is a wasteful number, since it uses less digits than its factorization.

1447201872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050027 (or 10050018 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1447201872 is about 38042.1065662773. The cubic root of 1447201872 is about 1131.1226663268.

The spelling of 1447201872 in words is "one billion, four hundred forty-seven million, two hundred one thousand, eight hundred seventy-two".