73981448 has 12 divisors (see below), whose sum is σ = 138760845. Its totient is φ = 36978560.

The previous prime is 73981423. The next prime is 73981451. The reversal of 73981448 is 84418937.

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 2 ways, for example, as 47582404 + 26399044 = 6898^2 + 5138^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6082.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73981399 and 73981408.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 22808 + ... + 25848.

Almost surely, 2^73981448 is an apocalyptic number.

It is an amenable number.

73981448 is a deficient number, since it is larger than the sum of its proper divisors (64779397).

73981448 is an frugal number, since it uses more digits than its factorization.

73981448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088 (or 3043 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 73981448 is about 8601.2468863532. The cubic root of 73981448 is about 419.7985579720.

The spelling of 73981448 in words is "seventy-three million, nine hundred eighty-one thousand, four hundred forty-eight".