74782448 has 40 divisors (see below), whose sum is σ = 157135776. Its totient is φ = 34272000.

The previous prime is 74782399. The next prime is 74782451. The reversal of 74782448 is 84428747.

It is a junction number, because it is equal to n+sod(n) for n = 74782399 and 74782408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30218 + ... + 32598.

Almost surely, 2^74782448 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 74782448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78567888).

74782448 is an abundant number, since it is smaller than the sum of its proper divisors (82353328).

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

74782448 is a wasteful number, since it uses less digits than its factorization.

74782448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553 (or 2547 counting only the distinct ones).

The product of its digits is 401408, while the sum is 44.

The square root of 74782448 is about 8647.6845455879. The cubic root of 74782448 is about 421.3081811705.

The spelling of 74782448 in words is "seventy-four million, seven hundred eighty-two thousand, four hundred forty-eight".