74550528 has 216 divisors, whose sum is σ = 245525280. Its totient is φ = 21565440.

The previous prime is 74550499. The next prime is 74550529. The reversal of 74550528 is 82505547.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 74550492 and 74550501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74550529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569023 + ... + 569153.

Almost surely, 2^74550528 is an apocalyptic number.

74550528 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 74550528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122762640).

74550528 is an abundant number, since it is smaller than the sum of its proper divisors (170974752).

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

74550528 is a wasteful number, since it uses less digits than its factorization.

74550528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 74550528 is about 8634.2647631399. The cubic root of 74550528 is about 420.8722010785.

It can be divided in two parts, 74550 and 528, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 74550528 in words is "seventy-four million, five hundred fifty thousand, five hundred twenty-eight".