80403120 has 360 divisors, whose sum is σ = 327474576. Its totient is φ = 17611776.

The previous prime is 80403097. The next prime is 80403131. The reversal of 80403120 is 2130408.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 80403093 and 80403102.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 1517014 + ... + 1517066.

Almost surely, 2^80403120 is an apocalyptic number.

80403120 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 80403120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163737288).

80403120 is an abundant number, since it is smaller than the sum of its proper divisors (247071456).

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

80403120 is a wasteful number, since it uses less digits than its factorization.

80403120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 80403120 is about 8966.7786857935. The cubic root of 80403120 is about 431.6094721723.

Adding to 80403120 its reverse (2130408), we get a palindrome (82533528).

The spelling of 80403120 in words is "eighty million, four hundred three thousand, one hundred twenty".