80510040 has 96 divisors (see below), whose sum is σ = 281801520. Its totient is φ = 19816704.

The previous prime is 80509969. The next prime is 80510041. The reversal of 80510040 is 4001508.

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 = 80509995 and 80510022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80510041) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3922 + ... + 13281.

Almost surely, 2^80510040 is an apocalyptic number.

It is an amenable number.

80510040 is an abundant number, since it is smaller than the sum of its proper divisors (201291480).

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

80510040 is a wasteful number, since it uses less digits than its factorization.

80510040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17233 (or 17226 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 80510040 is about 8972.7387123442. The cubic root of 80510040 is about 431.8007053986.

Adding to 80510040 its reverse (4001508), we get a palindrome (84511548).

The spelling of 80510040 in words is "eighty million, five hundred ten thousand, forty".