74974464 has 72 divisors (see below), whose sum is σ = 221733120. Its totient is φ = 24989184.

The previous prime is 74974463. The next prime is 74974519. The reversal of 74974464 is 46447947.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74974463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489 + ... + 12335.

Almost surely, 2^74974464 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 74974464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110866560).

74974464 is an abundant number, since it is smaller than the sum of its proper divisors (146758656).

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

74974464 is a wasteful number, since it uses less digits than its factorization.

74974464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872 (or 10852 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 74974464 is about 8658.7795906814. The cubic root of 74974464 is about 421.6684652255.

The spelling of 74974464 in words is "seventy-four million, nine hundred seventy-four thousand, four hundred sixty-four".