74322432 has 90 divisors (see below), whose sum is σ = 216201843. Its totient is φ = 24579072.

The previous prime is 74322397. The next prime is 74322481. The reversal of 74322432 is 23422347.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 37161216 = 6096^2 + 6096^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6096.

It is a junction number, because it is equal to n+sod(n) for n = 74322396 and 74322405.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 585153 + ... + 585279.

Almost surely, 2^74322432 is an apocalyptic number.

74322432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74322432

74322432 is an abundant number, since it is smaller than the sum of its proper divisors (141879411).

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

74322432 is an equidigital number, since it uses as much as digits as its factorization.

74322432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 132 counting only the distinct ones).

The product of its digits is 8064, while the sum is 27.

The square root of 74322432 is about 8621.0458762264. The cubic root of 74322432 is about 420.4425267718.

Adding to 74322432 its reverse (23422347), we get a palindrome (97744779).

The spelling of 74322432 in words is "seventy-four million, three hundred twenty-two thousand, four hundred thirty-two".