74513232 has 60 divisors (see below), whose sum is σ = 209132820. Its totient is φ = 24766464.

The previous prime is 74513221. The next prime is 74513237. The reversal of 74513232 is 23231547.

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 70963776 = 1884^2 + 8424^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74513196 and 74513205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74513237) 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 11 ways as a sum of consecutive naturals, for example, 79744 + ... + 80672.

It is an arithmetic number, because the mean of its divisors is an integer number (3485547).

Almost surely, 2^74513232 is an apocalyptic number.

74513232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74513232 is an abundant number, since it is smaller than the sum of its proper divisors (134619588).

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

74513232 is a wasteful number, since it uses less digits than its factorization.

74513232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1491 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 74513232 is about 8632.1047259634. The cubic root of 74513232 is about 420.8020049830.

Adding to 74513232 its reverse (23231547), we get a palindrome (97744779).

The spelling of 74513232 in words is "seventy-four million, five hundred thirteen thousand, two hundred thirty-two".