19102942 has 16 divisors (see below), whose sum is σ = 30286800. Its totient is φ = 9011520.

The previous prime is 19102939. The next prime is 19102969. The reversal of 19102942 is 24920191.

It is a happy number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 19102942.

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, 9784 + ... + 11572.

It is an arithmetic number, because the mean of its divisors is an integer number (1892925).

Almost surely, 2^19102942 is an apocalyptic number.

19102942 is a deficient number, since it is larger than the sum of its proper divisors (11183858).

19102942 is a wasteful number, since it uses less digits than its factorization.

19102942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 19102942 is about 4370.6912496766. The cubic root of 19102942 is about 267.3212104848.

The spelling of 19102942 in words is "nineteen million, one hundred two thousand, nine hundred forty-two".