91342080 has 180 divisors, whose sum is σ = 327209652. Its totient is φ = 24330240.

The previous prime is 91342073. The next prime is 91342099. The reversal of 91342080 is 8024319.

It can be written as a sum of positive squares in 2 ways, for example, as 23970816 + 67371264 = 4896^2 + 8208^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 103240 + ... + 104120.

Almost surely, 2^91342080 is an apocalyptic number.

91342080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91342080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163604826).

91342080 is an abundant number, since it is smaller than the sum of its proper divisors (235867572).

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

91342080 is an equidigital number, since it uses as much as digits as its factorization.

91342080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 91342080 is about 9557.3050594820. The cubic root of 91342080 is about 450.3570499591.

Adding to 91342080 its reverse (8024319), we get a palindrome (99366399).

The spelling of 91342080 in words is "ninety-one million, three hundred forty-two thousand, eighty".