91268464 has 80 divisors (see below), whose sum is σ = 211542016. Its totient is φ = 37324800.

The previous prime is 91268449. The next prime is 91268473. The reversal of 91268464 is 46486219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336649 + ... + 336919.

Almost surely, 2^91268464 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 91268464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105771008).

91268464 is an abundant number, since it is smaller than the sum of its proper divisors (120273552).

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

91268464 is a wasteful number, since it uses less digits than its factorization.

91268464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 408 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 91268464 is about 9553.4529883179. The cubic root of 91268464 is about 450.2360309096.

The spelling of 91268464 in words is "ninety-one million, two hundred sixty-eight thousand, four hundred sixty-four".