191448488 has 96 divisors (see below), whose sum is σ = 471549600. Its totient is φ = 71971200.

The previous prime is 191448457. The next prime is 191448497. The reversal of 191448488 is 884844191.

191448488 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×191448488² = 73305047114972288, which contains 22 as substring.

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, 124283 + ... + 125813.

It is an arithmetic number, because the mean of its divisors is an integer number (4911975).

Almost surely, 2^191448488 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 191448488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235774800).

191448488 is an abundant number, since it is smaller than the sum of its proper divisors (280101112).

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

191448488 is a wasteful number, since it uses less digits than its factorization.

191448488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1580 counting only the distinct ones).

The product of its digits is 294912, while the sum is 47.

The square root of 191448488 is about 13836.4911737044. The cubic root of 191448488 is about 576.3469248144.

The spelling of 191448488 in words is "one hundred ninety-one million, four hundred forty-eight thousand, four hundred eighty-eight".