191940382 has 16 divisors (see below), whose sum is σ = 301138560. Its totient is φ = 91580632.

The previous prime is 191940379. The next prime is 191940407. The reversal of 191940382 is 283049191.

It is a super-2 number, since 2×191940382² = 73682220484611848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15669 + ... + 25087.

It is an arithmetic number, because the mean of its divisors is an integer number (18821160).

Almost surely, 2^191940382 is an apocalyptic number.

191940382 is a deficient number, since it is larger than the sum of its proper divisors (109198178).

191940382 is a wasteful number, since it uses less digits than its factorization.

191940382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 191940382 is about 13854.2550142546. The cubic root of 191940382 is about 576.8401108063.

The spelling of 191940382 in words is "one hundred ninety-one million, nine hundred forty thousand, three hundred eighty-two".