19091942 has 8 divisors (see below), whose sum is σ = 28658856. Its totient is φ = 9538992.

The previous prime is 19091921. The next prime is 19091951. The reversal of 19091942 is 24919091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (3582357).

Almost surely, 2^19091942 is an apocalyptic number.

19091942 is a deficient number, since it is larger than the sum of its proper divisors (9566914).

19091942 is a wasteful number, since it uses less digits than its factorization.

19091942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6982.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 19091942 is about 4369.4326862878. The cubic root of 19091942 is about 267.2698903284.

The spelling of 19091942 in words is "nineteen million, ninety-one thousand, nine hundred forty-two".