191468550 has 192 divisors, whose sum is σ = 594961920. Its totient is φ = 39911040.

The previous prime is 191468549. The next prime is 191468579. The reversal of 191468550 is 55864191.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 191468499 and 191468508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2306809 + ... + 2306891.

It is an arithmetic number, because the mean of its divisors is an integer number (3098760).

Almost surely, 2^191468550 is an apocalyptic number.

191468550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 191468550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297480960).

191468550 is an abundant number, since it is smaller than the sum of its proper divisors (403493370).

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

191468550 is a wasteful number, since it uses less digits than its factorization.

191468550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 191468550 is about 13837.2161217493. The cubic root of 191468550 is about 576.3670560226.

The spelling of 191468550 in words is "one hundred ninety-one million, four hundred sixty-eight thousand, five hundred fifty".