191016448 has 80 divisors (see below), whose sum is σ = 439971840. Its totient is φ = 81156096.

The previous prime is 191016421. The next prime is 191016467. The reversal of 191016448 is 844610191.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 799113 + ... + 799351.

It is an arithmetic number, because the mean of its divisors is an integer number (5499648).

Almost surely, 2^191016448 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 191016448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219985920).

191016448 is an abundant number, since it is smaller than the sum of its proper divisors (248955392).

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

191016448 is an equidigital number, since it uses as much as digits as its factorization.

191016448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 191016448 is about 13820.8700160301. The cubic root of 191016448 is about 575.9130527196.

The spelling of 191016448 in words is "one hundred ninety-one million, sixteen thousand, four hundred forty-eight".