91741040 has 20 divisors (see below), whose sum is σ = 213298104. Its totient is φ = 36696384.

The previous prime is 91741031. The next prime is 91741057. The reversal of 91741040 is 4014719.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573302 + ... + 573461.

Almost surely, 2^91741040 is an apocalyptic number.

It is an amenable number.

91741040 is an abundant number, since it is smaller than the sum of its proper divisors (121557064).

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

91741040 is a wasteful number, since it uses less digits than its factorization.

91741040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146776 (or 1146770 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 91741040 is about 9578.1543107219. The cubic root of 91741040 is about 451.0117810175.

Adding to 91741040 its reverse (4014719), we get a palindrome (95755759).

The spelling of 91741040 in words is "ninety-one million, seven hundred forty-one thousand, forty".