91120444 has 12 divisors (see below), whose sum is σ = 159529104. Its totient is φ = 45540704.

The previous prime is 91120429. The next prime is 91120453. The reversal of 91120444 is 44402119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12504 + ... + 18400.

It is an arithmetic number, because the mean of its divisors is an integer number (13294092).

Almost surely, 2^91120444 is an apocalyptic number.

It is an amenable number.

91120444 is a deficient number, since it is larger than the sum of its proper divisors (68408660).

91120444 is a wasteful number, since it uses less digits than its factorization.

91120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764 (or 9762 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 91120444 is about 9545.7029075915. The cubic root of 91120444 is about 449.9925002865.

The spelling of 91120444 in words is "ninety-one million, one hundred twenty thousand, four hundred forty-four".