80266840 has 16 divisors (see below), whose sum is σ = 180600480. Its totient is φ = 32106720.

The previous prime is 80266831. The next prime is 80266847. The reversal of 80266840 is 4866208.

It is a junction number, because it is equal to n+sod(n) for n = 80266796 and 80266805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80266847) 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 3 ways as a sum of consecutive naturals, for example, 1003296 + ... + 1003375.

It is an arithmetic number, because the mean of its divisors is an integer number (11287530).

Almost surely, 2^80266840 is an apocalyptic number.

It is an amenable number.

80266840 is an abundant number, since it is smaller than the sum of its proper divisors (100333640).

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

80266840 is a wasteful number, since it uses less digits than its factorization.

80266840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006682 (or 2006678 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 80266840 is about 8959.1763014241. The cubic root of 80266840 is about 431.3654808008.

The spelling of 80266840 in words is "eighty million, two hundred sixty-six thousand, eight hundred forty".