91344450 has 96 divisors (see below), whose sum is σ = 235252800. Its totient is φ = 23443200.

The previous prime is 91344443. The next prime is 91344467. The reversal of 91344450 is 5444319.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 612976 + ... + 613124.

It is an arithmetic number, because the mean of its divisors is an integer number (2450550).

Almost surely, 2^91344450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91344450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117626400).

91344450 is an abundant number, since it is smaller than the sum of its proper divisors (143908350).

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

91344450 is a wasteful number, since it uses less digits than its factorization.

91344450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 91344450 is about 9557.4290476048. The cubic root of 91344450 is about 450.3609449765.

Adding to 91344450 its reverse (5444319), we get a palindrome (96788769).

The spelling of 91344450 in words is "ninety-one million, three hundred forty-four thousand, four hundred fifty".