74953728 has 88 divisors (see below), whose sum is σ = 222058560. Its totient is φ = 24975360.

The previous prime is 74953721. The next prime is 74953759. The reversal of 74953728 is 82735947.

It is a super-2 number, since 2×74953728² = 11236122682195968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74953721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26293 + ... + 29003.

Almost surely, 2^74953728 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 74953728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111029280).

74953728 is an abundant number, since it is smaller than the sum of its proper divisors (147104832).

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

74953728 is a wasteful number, since it uses less digits than its factorization.

74953728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2716 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 74953728 is about 8657.5821104971. The cubic root of 74953728 is about 421.6295874395.

The spelling of 74953728 in words is "seventy-four million, nine hundred fifty-three thousand, seven hundred twenty-eight".