80302540 has 24 divisors (see below), whose sum is σ = 171496080. Its totient is φ = 31576128.

The previous prime is 80302529. The next prime is 80302549. The reversal of 80302540 is 4520308.

It is not an unprimeable number, because it can be changed into a prime (80302549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32847 + ... + 35206.

It is an arithmetic number, because the mean of its divisors is an integer number (7145670).

Almost surely, 2^80302540 is an apocalyptic number.

It is an amenable number.

80302540 is an abundant number, since it is smaller than the sum of its proper divisors (91193540).

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

80302540 is a wasteful number, since it uses less digits than its factorization.

80302540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68121 (or 68119 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 80302540 is about 8961.1684505984. The cubic root of 80302540 is about 431.4294236243.

Adding to 80302540 its reverse (4520308), we get a palindrome (84822848).

The spelling of 80302540 in words is "eighty million, three hundred two thousand, five hundred forty".