73438448 has 40 divisors (see below), whose sum is σ = 149374368. Its totient is φ = 34909952.

The previous prime is 73438381. The next prime is 73438459. The reversal of 73438448 is 84483437.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71990 + ... + 73002.

Almost surely, 2^73438448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73438448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74687184).

73438448 is an abundant number, since it is smaller than the sum of its proper divisors (75935920).

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

73438448 is a wasteful number, since it uses less digits than its factorization.

73438448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1235 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 73438448 is about 8569.6235623276. The cubic root of 73438448 is about 418.7689728390.

The spelling of 73438448 in words is "seventy-three million, four hundred thirty-eight thousand, four hundred forty-eight".