191348430 has 384 divisors, whose sum is σ = 661893120. Its totient is φ = 34836480.

The previous prime is 191348429. The next prime is 191348453. The reversal of 191348430 is 34843191.

It is a super-2 number, since 2×191348430² = 73228443326929800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 191348391 and 191348400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6172515 + ... + 6172545.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^191348430 is an apocalyptic number.

191348430 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 191348430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330946560).

191348430 is an abundant number, since it is smaller than the sum of its proper divisors (470544690).

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

191348430 is a wasteful number, since it uses less digits than its factorization.

191348430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 191348430 is about 13832.8749723259. The cubic root of 191348430 is about 576.2465006383.

The spelling of 191348430 in words is "one hundred ninety-one million, three hundred forty-eight thousand, four hundred thirty".