80990128 has 10 divisors (see below), whose sum is σ = 156918404. Its totient is φ = 40495056.

The previous prime is 80990111. The next prime is 80990131. The reversal of 80990128 is 82109908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530926 + ... + 2530957.

Almost surely, 2^80990128 is an apocalyptic number.

It is an amenable number.

80990128 is a deficient number, since it is larger than the sum of its proper divisors (75928276).

80990128 is a wasteful number, since it uses less digits than its factorization.

80990128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061891 (or 5061885 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 80990128 is about 8999.4515388439. The cubic root of 80990128 is about 432.6572927389.

It can be divided in two parts, 80990 and 128, that added together give a palindrome (81118).

The spelling of 80990128 in words is "eighty million, nine hundred ninety thousand, one hundred twenty-eight".