19936938 has 32 divisors (see below), whose sum is σ = 45711360. Its totient is φ = 5678640.

The previous prime is 19936933. The next prime is 19936951. The reversal of 19936938 is 83963991.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19936933) 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 15 ways as a sum of consecutive naturals, for example, 19623 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (1428480).

Almost surely, 2^19936938 is an apocalyptic number.

19936938 is an abundant number, since it is smaller than the sum of its proper divisors (25774422).

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

19936938 is a wasteful number, since it uses less digits than its factorization.

19936938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its digits is 314928, while the sum is 48.

The square root of 19936938 is about 4465.0798425112. The cubic root of 19936938 is about 271.1561669397.

The spelling of 19936938 in words is "nineteen million, nine hundred thirty-six thousand, nine hundred thirty-eight".