74328574320 has 1200 divisors, whose sum is σ = 353017592928. Its totient is φ = 14248120320.

The previous prime is 74328574301. The next prime is 74328574321. The reversal of 74328574320 is 2347582347.

74328574320 is a `hidden beast` number, since 7 + 43 + 2 + 8 + 574 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74328574321) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 45404542 + ... + 45406178.

Almost surely, 2^74328574320 is an apocalyptic number.

74328574320 is a gapful number since it is divisible by the number (70) 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 74328574320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176508796464).

74328574320 is an abundant number, since it is smaller than the sum of its proper divisors (278689018608).

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

74328574320 is a wasteful number, since it uses less digits than its factorization.

74328574320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 74328574320 in words is "seventy-four billion, three hundred twenty-eight million, five hundred seventy-four thousand, three hundred twenty".