74340320 has 96 divisors (see below), whose sum is σ = 188225856. Its totient is φ = 27648000.

The previous prime is 74340313. The next prime is 74340341. The reversal of 74340320 is 2304347.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410630 + ... + 410810.

It is an arithmetic number, because the mean of its divisors is an integer number (1960686).

Almost surely, 2^74340320 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 74340320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94112928).

74340320 is an abundant number, since it is smaller than the sum of its proper divisors (113885536).

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

74340320 is a wasteful number, since it uses less digits than its factorization.

74340320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 74340320 is about 8622.0832749400. The cubic root of 74340320 is about 420.4762549138.

Adding to 74340320 its reverse (2304347), we get a palindrome (76644667).

The spelling of 74340320 in words is "seventy-four million, three hundred forty thousand, three hundred twenty".