191013480 has 192 divisors, whose sum is σ = 714729600. Its totient is φ = 43338240.

The previous prime is 191013469. The next prime is 191013497. The reversal of 191013480 is 84310191.

It is a super-2 number, since 2×191013480² = 72972299083420800, which contains 22 as substring.

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, 576915 + ... + 577245.

It is an arithmetic number, because the mean of its divisors is an integer number (3722550).

Almost surely, 2^191013480 is an apocalyptic number.

191013480 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 191013480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357364800).

191013480 is an abundant number, since it is smaller than the sum of its proper divisors (523716120).

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

191013480 is a wasteful number, since it uses less digits than its factorization.

191013480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 191013480 is about 13820.7626417647. The cubic root of 191013480 is about 575.9100698721.

The spelling of 191013480 in words is "one hundred ninety-one million, thirteen thousand, four hundred eighty".