74730 has 32 divisors (see below), whose sum is σ = 186624. Its totient is φ = 19136.

The previous prime is 74729. The next prime is 74731. The reversal of 74730 is 3747.

It is an interprime number because it is at equal distance from previous prime (74729) and next prime (74731).

It is a junction number, because it is equal to n+sod(n) for n = 74697 and 74706.

It is not an unprimeable number, because it can be changed into a prime (74731) 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, 1384 + ... + 1436.

It is an arithmetic number, because the mean of its divisors is an integer number (5832).

2⁷⁴⁷³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93312).

74730 is an abundant number, since it is smaller than the sum of its proper divisors (111894).

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

74730 is a wasteful number, since it uses less digits than its factorization.

74730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 74730 is about 273.3678839952. The cubic root of 74730 is about 42.1209664563.

It can be divided in two parts, 747 and 30, that added together give a palindrome (777).

The spelling of 74730 in words is "seventy-four thousand, seven hundred thirty".