80303040 has 84 divisors (see below), whose sum is σ = 276218904. Its totient is φ = 21413376.

The previous prime is 80303039. The next prime is 80303089. The reversal of 80303040 is 4030308.

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

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11062 + ... + 16821.

Almost surely, 2^80303040 is an apocalyptic number.

80303040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80303040 is an abundant number, since it is smaller than the sum of its proper divisors (195915864).

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

80303040 is a wasteful number, since it uses less digits than its factorization.

80303040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27906 (or 27893 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 80303040 is about 8961.1963487026. The cubic root of 80303040 is about 431.4303190474.

Adding to 80303040 its reverse (4030308), we get a palindrome (84333348).

The spelling of 80303040 in words is "eighty million, three hundred three thousand, forty".