80449100 has 72 divisors (see below), whose sum is σ = 189987840. Its totient is φ = 29445120.

The previous prime is 80449091. The next prime is 80449129. The reversal of 80449100 is 194408.

It is a self number, because there is not a number n which added to its sum of digits gives 80449100.

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 23 ways as a sum of consecutive naturals, for example, 62261 + ... + 63539.

It is an arithmetic number, because the mean of its divisors is an integer number (2638720).

Almost surely, 2^80449100 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 80449100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

80449100 is an abundant number, since it is smaller than the sum of its proper divisors (109538740).

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

80449100 is a wasteful number, since it uses less digits than its factorization.

80449100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 80449100 is about 8969.3422278337. The cubic root of 80449100 is about 431.6917310935.

The spelling of 80449100 in words is "eighty million, four hundred forty-nine thousand, one hundred".