80188450 has 12 divisors (see below), whose sum is σ = 149150610. Its totient is φ = 32075360.

The previous prime is 80188411. The next prime is 80188483. The reversal of 80188450 is 5488108.

It can be written as a sum of positive squares in 3 ways, for example, as 40081561 + 40106889 = 6331^2 + 6333^2 .

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 5 ways as a sum of consecutive naturals, for example, 801835 + ... + 801934.

Almost surely, 2^80188450 is an apocalyptic number.

80188450 is a deficient number, since it is larger than the sum of its proper divisors (68962160).

80188450 is a wasteful number, since it uses less digits than its factorization.

80188450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603781 (or 1603776 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 80188450 is about 8954.8003886184. The cubic root of 80188450 is about 431.2250087037.

The spelling of 80188450 in words is "eighty million, one hundred eighty-eight thousand, four hundred fifty".