1972188548 has 48 divisors (see below), whose sum is σ = 3847253760. Its totient is φ = 877094400.

The previous prime is 1972188523. The next prime is 1972188571. The reversal of 1972188548 is 8458812791.

It is a self number, because there is not a number n which added to its sum of digits gives 1972188548.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390278 + ... + 395298.

It is an arithmetic number, because the mean of its divisors is an integer number (80151120).

Almost surely, 2^1972188548 is an apocalyptic number.

It is an amenable number.

1972188548 is a deficient number, since it is larger than the sum of its proper divisors (1875065212).

1972188548 is a wasteful number, since it uses less digits than its factorization.

1972188548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228 (or 5226 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 53.

The square root of 1972188548 is about 44409.3295153169. The cubic root of 1972188548 is about 1254.0537298485.

The spelling of 1972188548 in words is "one billion, nine hundred seventy-two million, one hundred eighty-eight thousand, five hundred forty-eight".