80275780 has 48 divisors (see below), whose sum is σ = 182355264. Its totient is φ = 29508480.

The previous prime is 80275757. The next prime is 80275823. The reversal of 80275780 is 8757208.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 73035 + ... + 74125.

It is an arithmetic number, because the mean of its divisors is an integer number (3799068).

Almost surely, 2^80275780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80275780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91177632).

80275780 is an abundant number, since it is smaller than the sum of its proper divisors (102079484).

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

80275780 is a wasteful number, since it uses less digits than its factorization.

80275780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 80275780 is about 8959.6752173279. The cubic root of 80275780 is about 431.3814951526.

The spelling of 80275780 in words is "eighty million, two hundred seventy-five thousand, seven hundred eighty".