91941450 has 96 divisors (see below), whose sum is σ = 236234880. Its totient is φ = 23654400.

The previous prime is 91941449. The next prime is 91941461. The reversal of 91941450 is 5414919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 947802 + ... + 947898.

It is an arithmetic number, because the mean of its divisors is an integer number (2460780).

Almost surely, 2^91941450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91941450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118117440).

91941450 is an abundant number, since it is smaller than the sum of its proper divisors (144293430).

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

91941450 is a wasteful number, since it uses less digits than its factorization.

91941450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 91941450 is about 9588.6104311313. The cubic root of 91941450 is about 451.3399566927.

The spelling of 91941450 in words is "ninety-one million, nine hundred forty-one thousand, four hundred fifty".