74794320 has 160 divisors (see below), whose sum is σ = 266173440. Its totient is φ = 19284480.

The previous prime is 74794309. The next prime is 74794327. The reversal of 74794320 is 2349747.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74794327) 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 31 ways as a sum of consecutive naturals, for example, 66402 + ... + 67518.

It is an arithmetic number, because the mean of its divisors is an integer number (1663584).

Almost surely, 2^74794320 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 74794320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133086720).

74794320 is an abundant number, since it is smaller than the sum of its proper divisors (191379120).

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

74794320 is a wasteful number, since it uses less digits than its factorization.

74794320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 74794320 is about 8648.3709448659. The cubic root of 74794320 is about 421.3304747532.

The spelling of 74794320 in words is "seventy-four million, seven hundred ninety-four thousand, three hundred twenty".