19923134 has 48 divisors (see below), whose sum is σ = 39580800. Its totient is φ = 7341840.

The previous prime is 19923119. The next prime is 19923151. The reversal of 19923134 is 43132991.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19923134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31877 + ... + 32495.

It is an arithmetic number, because the mean of its divisors is an integer number (824600).

Almost surely, 2^19923134 is an apocalyptic number.

19923134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19923134 is a deficient number, since it is larger than the sum of its proper divisors (19657666).

19923134 is a wasteful number, since it uses less digits than its factorization.

19923134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 658 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 19923134 is about 4463.5338018212. The cubic root of 19923134 is about 271.0935711701.

The spelling of 19923134 in words is "nineteen million, nine hundred twenty-three thousand, one hundred thirty-four".