19492102 has 12 divisors (see below), whose sum is σ = 34011900. Its totient is φ = 8353716.

The previous prime is 19492069. The next prime is 19492103. The reversal of 19492102 is 20129491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19492103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 99352 + ... + 99547.

It is an arithmetic number, because the mean of its divisors is an integer number (2834325).

Almost surely, 2^19492102 is an apocalyptic number.

19492102 is a deficient number, since it is larger than the sum of its proper divisors (14519798).

19492102 is a wasteful number, since it uses less digits than its factorization.

19492102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198915 (or 198908 counting only the distinct ones).

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

The square root of 19492102 is about 4414.9860701932. The cubic root of 19492102 is about 269.1242867115.

The spelling of 19492102 in words is "nineteen million, four hundred ninety-two thousand, one hundred two".