74412 has 48 divisors (see below), whose sum is σ = 211680. Its totient is φ = 22464.

The previous prime is 74411. The next prime is 74413. The reversal of 74412 is 21447.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74411) and next prime (74413).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (74411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1378 + ... + 1430.

It is an arithmetic number, because the mean of its divisors is an integer number (4410).

2⁷⁴⁴¹² 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 74412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105840).

74412 is an abundant number, since it is smaller than the sum of its proper divisors (137268).

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

74412 is a wasteful number, since it uses less digits than its factorization.

74412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 71 counting only the distinct ones).

The product of its digits is 224, while the sum is 18.

The square root of 74412 is about 272.7856301201. The cubic root of 74412 is about 42.0611354575.

Adding to 74412 its reverse (21447), we get a palindrome (95859).

The spelling of 74412 in words is "seventy-four thousand, four hundred twelve", and thus it is an iban number.