74481432 has 16 divisors (see below), whose sum is σ = 186203640. Its totient is φ = 24827136.

The previous prime is 74481419. The next prime is 74481439. The reversal of 74481432 is 23418447.

It is a junction number, because it is equal to n+sod(n) for n = 74481393 and 74481402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74481439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1551673 + ... + 1551720.

Almost surely, 2^74481432 is an apocalyptic number.

It is an amenable number.

74481432 is an abundant number, since it is smaller than the sum of its proper divisors (111722208).

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

74481432 is a wasteful number, since it uses less digits than its factorization.

74481432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103402 (or 3103398 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 74481432 is about 8630.2625684275. The cubic root of 74481432 is about 420.7421345974.

Adding to 74481432 its reverse (23418447), we get a palindrome (97899879).

The spelling of 74481432 in words is "seventy-four million, four hundred eighty-one thousand, four hundred thirty-two".