1974181448 has 36 divisors (see below), whose sum is σ = 3875200035. Its totient is φ = 942791344.

The previous prime is 1974181439. The next prime is 1974181519. The reversal of 1974181448 is 8441814791.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 987090724 + 987090724 = 31418^2 + 31418^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31418.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2890115 + ... + 2890797.

Almost surely, 2^1974181448 is an apocalyptic number.

It is an amenable number.

1974181448 is a deficient number, since it is larger than the sum of its proper divisors (1901018587).

1974181448 is an frugal number, since it uses more digits than its factorization.

1974181448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 708 counting only the distinct ones).

The product of its digits is 258048, while the sum is 47.

The square root of 1974181448 is about 44431.7617026379. The cubic root of 1974181448 is about 1254.4759954810.

The spelling of 1974181448 in words is "one billion, nine hundred seventy-four million, one hundred eighty-one thousand, four hundred forty-eight".