80426281 has 16 divisors (see below), whose sum is σ = 89114256. Its totient is φ = 72124416.

The previous prime is 80426267. The next prime is 80426293. The reversal of 80426281 is 18262408.

It can be written as a sum of positive squares in 8 ways, for example, as 931225 + 79495056 = 965^2 + 8916^2 .

It is not a de Polignac number, because 80426281 - 2⁷ = 80426153 is a prime.

It is a super-2 number, since 2×80426281² = 12936773350981922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80426231) 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 15 ways as a sum of consecutive naturals, for example, 77341 + ... + 78373.

It is an arithmetic number, because the mean of its divisors is an integer number (5569641).

Almost surely, 2^80426281 is an apocalyptic number.

It is an amenable number.

80426281 is a deficient number, since it is larger than the sum of its proper divisors (8687975).

80426281 is a wasteful number, since it uses less digits than its factorization.

80426281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 80426281 is about 8968.0700822418. The cubic root of 80426281 is about 431.6509114733.

Adding to 80426281 its reverse (18262408), we get a palindrome (98688689).

The spelling of 80426281 in words is "eighty million, four hundred twenty-six thousand, two hundred eighty-one".