74974624 has 48 divisors (see below), whose sum is σ = 157163328. Its totient is φ = 35085312.

The previous prime is 74974561. The next prime is 74974631. The reversal of 74974624 is 42647947.

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, 153709 + ... + 154195.

It is an arithmetic number, because the mean of its divisors is an integer number (3274236).

Almost surely, 2^74974624 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 74974624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78581664).

74974624 is an abundant number, since it is smaller than the sum of its proper divisors (82188704).

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

74974624 is a wasteful number, since it uses less digits than its factorization.

74974624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 789 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 74974624 is about 8658.7888298537. The cubic root of 74974624 is about 421.6687651806.

It can be divided in two parts, 7497 and 4624, that added together give a palindrome (12121).

The spelling of 74974624 in words is "seventy-four million, nine hundred seventy-four thousand, six hundred twenty-four".