74744748 has 96 divisors (see below), whose sum is σ = 210739200. Its totient is φ = 22773312.

The previous prime is 74744729. The next prime is 74744749. The reversal of 74744748 is 84744747.

It is not an unprimeable number, because it can be changed into a prime (74744749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194965 + ... + 195347.

It is an arithmetic number, because the mean of its divisors is an integer number (2195200).

Almost surely, 2^74744748 is an apocalyptic number.

74744748 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74744748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105369600).

74744748 is an abundant number, since it is smaller than the sum of its proper divisors (135994452).

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

74744748 is a wasteful number, since it uses less digits than its factorization.

74744748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 540 counting only the distinct ones).

The product of its digits is 702464, while the sum is 45.

The square root of 74744748 is about 8645.5044965577. The cubic root of 74744748 is about 421.2373713807.

Subtracting 74744748 from its reverse (84744747), we obtain a palindrome (9999999).

The spelling of 74744748 in words is "seventy-four million, seven hundred forty-four thousand, seven hundred forty-eight".