74321412 has 24 divisors (see below), whose sum is σ = 189182112. Its totient is φ = 22521600.

The previous prime is 74321393. The next prime is 74321413. The reversal of 74321412 is 21412347.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (74321413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281389 + ... + 281652.

It is an arithmetic number, because the mean of its divisors is an integer number (7882588).

Almost surely, 2^74321412 is an apocalyptic number.

It is an amenable number.

74321412 is an abundant number, since it is smaller than the sum of its proper divisors (114860700).

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

74321412 is a wasteful number, since it uses less digits than its factorization.

74321412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563059 (or 563057 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 74321412 is about 8620.9867184679. The cubic root of 74321412 is about 420.4406033805.

Adding to 74321412 its reverse (21412347), we get a palindrome (95733759).

It can be divided in two parts, 743 and 21412, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 74321412 in words is "seventy-four million, three hundred twenty-one thousand, four hundred twelve".