191414280 has 128 divisors (see below), whose sum is σ = 603832320. Its totient is φ = 48449280.

The previous prime is 191414261. The next prime is 191414287. The reversal of 191414280 is 82414191.

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

It is not an unprimeable number, because it can be changed into a prime (191414287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615325 + ... + 615635.

It is an arithmetic number, because the mean of its divisors is an integer number (4717440).

Almost surely, 2^191414280 is an apocalyptic number.

191414280 is a gapful number since it is divisible by the number (10) 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 191414280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301916160).

191414280 is an abundant number, since it is smaller than the sum of its proper divisors (412418040).

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

191414280 is a wasteful number, since it uses less digits than its factorization.

191414280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 191414280 is about 13835.2549669314. The cubic root of 191414280 is about 576.3125955627.

The spelling of 191414280 in words is "one hundred ninety-one million, four hundred fourteen thousand, two hundred eighty".