191933442 has 32 divisors (see below), whose sum is σ = 429254400. Its totient is φ = 63567504.

The previous prime is 191933429. The next prime is 191933453. The reversal of 191933442 is 244339191.

It is a junction number, because it is equal to n+sod(n) for n = 191933397 and 191933406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2842 + ... + 19797.

It is an arithmetic number, because the mean of its divisors is an integer number (13414200).

Almost surely, 2^191933442 is an apocalyptic number.

191933442 is an abundant number, since it is smaller than the sum of its proper divisors (237320958).

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

191933442 is a wasteful number, since it uses less digits than its factorization.

191933442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22807 (or 22801 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 191933442 is about 13854.0045474224. The cubic root of 191933442 is about 576.8331584415.

The spelling of 191933442 in words is "one hundred ninety-one million, nine hundred thirty-three thousand, four hundred forty-two".