80432320 has 56 divisors (see below), whose sum is σ = 201625200. Its totient is φ = 30477312.

The previous prime is 80432293. The next prime is 80432327. The reversal of 80432320 is 2323408.

It is a junction number, because it is equal to n+sod(n) for n = 80432291 and 80432300.

It is not an unprimeable number, because it can be changed into a prime (80432327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535 + ... + 12694.

It is an arithmetic number, because the mean of its divisors is an integer number (3600450).

Almost surely, 2^80432320 is an apocalyptic number.

80432320 is a gapful number since it is divisible by the number (80) 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 80432320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100812600).

80432320 is an abundant number, since it is smaller than the sum of its proper divisors (121192880).

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

80432320 is a wasteful number, since it uses less digits than its factorization.

80432320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265 (or 13255 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 80432320 is about 8968.4067704359. The cubic root of 80432320 is about 431.6617150505.

Adding to 80432320 its reverse (2323408), we get a palindrome (82755728).

It can be divided in two parts, 804 and 32320, that added together give a square (33124 = 182²).

The spelling of 80432320 in words is "eighty million, four hundred thirty-two thousand, three hundred twenty".