74790 has 32 divisors (see below), whose sum is σ = 200160. Its totient is φ = 19872.

The previous prime is 74779. The next prime is 74797. The reversal of 74790 is 9747.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74797) by changing a digit.

74790 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132 + ... + 408.

It is an arithmetic number, because the mean of its divisors is an integer number (6255).

2⁷⁴⁷⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100080).

74790 is an abundant number, since it is smaller than the sum of its proper divisors (125370).

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

74790 is a wasteful number, since it uses less digits than its factorization.

74790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 74790 is about 273.4776042019. The cubic root of 74790 is about 42.1322362806.

The spelling of 74790 in words is "seventy-four thousand, seven hundred ninety".