80851740 has 48 divisors (see below), whose sum is σ = 226931712. Its totient is φ = 21508416.

The previous prime is 80851733. The next prime is 80851763. The reversal of 80851740 is 4715808.

It is a happy number.

It is a super-2 number, since 2×80851740² = 13074007722055200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 27837 + ... + 30603.

It is an arithmetic number, because the mean of its divisors is an integer number (4727744).

Almost surely, 2^80851740 is an apocalyptic number.

It is an amenable number.

80851740 is an abundant number, since it is smaller than the sum of its proper divisors (146079972).

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

80851740 is a wasteful number, since it uses less digits than its factorization.

80851740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 80851740 is about 8991.7595608424. The cubic root of 80851740 is about 432.4107247767.

The spelling of 80851740 in words is "eighty million, eight hundred fifty-one thousand, seven hundred forty".