191294940 has 24 divisors (see below), whose sum is σ = 535626000. Its totient is φ = 51011968.

The previous prime is 191294911. The next prime is 191294951. The reversal of 191294940 is 49492191.

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, 1594065 + ... + 1594184.

It is an arithmetic number, because the mean of its divisors is an integer number (22317750).

Almost surely, 2^191294940 is an apocalyptic number.

191294940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191294940 is an abundant number, since it is smaller than the sum of its proper divisors (344331060).

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

191294940 is a wasteful number, since it uses less digits than its factorization.

191294940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188261 (or 3188259 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 191294940 is about 13830.9413996300. The cubic root of 191294940 is about 576.1928005236.

The spelling of 191294940 in words is "one hundred ninety-one million, two hundred ninety-four thousand, nine hundred forty".