74795920 has 80 divisors (see below), whose sum is σ = 188559360. Its totient is φ = 27482112.

The previous prime is 74795911. The next prime is 74795921. The reversal of 74795920 is 2959747.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (74795921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57841 + ... + 59119.

It is an arithmetic number, because the mean of its divisors is an integer number (2356992).

Almost surely, 2^74795920 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 74795920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94279680).

74795920 is an abundant number, since it is smaller than the sum of its proper divisors (113763440).

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

74795920 is a wasteful number, since it uses less digits than its factorization.

74795920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 74795920 is about 8648.4634473414. The cubic root of 74795920 is about 421.3334790987. Note that the first 3 decimals are identical.

The spelling of 74795920 in words is "seventy-four million, seven hundred ninety-five thousand, nine hundred twenty".