1972127448 has 48 divisors (see below), whose sum is σ = 5381976600. Its totient is φ = 652354560.

The previous prime is 1972127431. The next prime is 1972127471. The reversal of 1972127448 is 8447212791.

1972127448 is a `hidden beast` number, since 19 + 72 + 127 + 448 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95113 + ... + 113976.

Almost surely, 2^1972127448 is an apocalyptic number.

1972127448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1972127448 is an abundant number, since it is smaller than the sum of its proper divisors (3409849152).

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

1972127448 is a wasteful number, since it uses less digits than its factorization.

1972127448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209232 (or 209225 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 1972127448 is about 44408.6415914741. The cubic root of 1972127448 is about 1254.0407791810.

The spelling of 1972127448 in words is "one billion, nine hundred seventy-two million, one hundred twenty-seven thousand, four hundred forty-eight".