80266540 has 24 divisors (see below), whose sum is σ = 169892352. Its totient is φ = 31852800.

The previous prime is 80266517. The next prime is 80266541. The reversal of 80266540 is 4566208.

It is not an unprimeable number, because it can be changed into a prime (80266541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13261 + ... + 18340.

It is an arithmetic number, because the mean of its divisors is an integer number (7078848).

Almost surely, 2^80266540 is an apocalyptic number.

It is an amenable number.

80266540 is an abundant number, since it is smaller than the sum of its proper divisors (89625812).

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

80266540 is a wasteful number, since it uses less digits than its factorization.

80266540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31737 (or 31735 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 80266540 is about 8959.1595587979. The cubic root of 80266540 is about 431.3649433859.

The spelling of 80266540 in words is "eighty million, two hundred sixty-six thousand, five hundred forty".