91140360 has 32 divisors (see below), whose sum is σ = 273421440. Its totient is φ = 24304064.

The previous prime is 91140347. The next prime is 91140367. The reversal of 91140360 is 6304119.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 91140360.

It is not an unprimeable number, because it can be changed into a prime (91140367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379632 + ... + 379871.

It is an arithmetic number, because the mean of its divisors is an integer number (8544420).

Almost surely, 2^91140360 is an apocalyptic number.

It is an amenable number.

91140360 is an abundant number, since it is smaller than the sum of its proper divisors (182281080).

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

91140360 is a wasteful number, since it uses less digits than its factorization.

91140360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759517 (or 759513 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 91140360 is about 9546.7460425006. The cubic root of 91140360 is about 450.0252825301.

Adding to 91140360 its reverse (6304119), we get a palindrome (97444479).

The spelling of 91140360 in words is "ninety-one million, one hundred forty thousand, three hundred sixty".