91264340 has 12 divisors (see below), whose sum is σ = 191655156. Its totient is φ = 36505728.

The previous prime is 91264333. The next prime is 91264343. The reversal of 91264340 is 4346219.

It can be written as a sum of positive squares in 2 ways, for example, as 48832144 + 42432196 = 6988^2 + 6514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91264343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281589 + ... + 2281628.

It is an arithmetic number, because the mean of its divisors is an integer number (15971263).

Almost surely, 2^91264340 is an apocalyptic number.

It is an amenable number.

91264340 is an abundant number, since it is smaller than the sum of its proper divisors (100390816).

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

91264340 is a wasteful number, since it uses less digits than its factorization.

91264340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563226 (or 4563224 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 91264340 is about 9553.2371476898. The cubic root of 91264340 is about 450.2292494457.

The spelling of 91264340 in words is "ninety-one million, two hundred sixty-four thousand, three hundred forty".