91448340 has 24 divisors (see below), whose sum is σ = 256055520. Its totient is φ = 24386208.

The previous prime is 91448293. The next prime is 91448351. The reversal of 91448340 is 4384419.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762010 + ... + 762129.

It is an arithmetic number, because the mean of its divisors is an integer number (10668980).

Almost surely, 2^91448340 is an apocalyptic number.

It is an amenable number.

91448340 is an abundant number, since it is smaller than the sum of its proper divisors (164607180).

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

91448340 is a wasteful number, since it uses less digits than its factorization.

91448340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524151 (or 1524149 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 91448340 is about 9562.8625421471. The cubic root of 91448340 is about 450.5316186255.

The spelling of 91448340 in words is "ninety-one million, four hundred forty-eight thousand, three hundred forty".