80423280 has 280 divisors, whose sum is σ = 322024032. Its totient is φ = 18289152.

The previous prime is 80423227. The next prime is 80423281. The reversal of 80423280 is 8232408.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (27).

80423280 is a modest number, since divided by 423280 gives 80 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80423281) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 408142 + ... + 408338.

Almost surely, 2^80423280 is an apocalyptic number.

80423280 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 80423280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161012016).

80423280 is an abundant number, since it is smaller than the sum of its proper divisors (241600752).

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

80423280 is a wasteful number, since it uses less digits than its factorization.

80423280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 80423280 is about 8967.9027648609. The cubic root of 80423280 is about 431.6455425794.

Adding to 80423280 its reverse (8232408), we get a palindrome (88655688).

The spelling of 80423280 in words is "eighty million, four hundred twenty-three thousand, two hundred eighty".