19965038 has 16 divisors (see below), whose sum is σ = 32114880. Its totient is φ = 9275136.

The previous prime is 19965019. The next prime is 19965041. The reversal of 19965038 is 83056991.

It is a junction number, because it is equal to n+sod(n) for n = 19964986 and 19965004.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1031 + ... + 6402.

It is an arithmetic number, because the mean of its divisors is an integer number (2007180).

Almost surely, 2^19965038 is an apocalyptic number.

19965038 is a deficient number, since it is larger than the sum of its proper divisors (12149842).

19965038 is a wasteful number, since it uses less digits than its factorization.

19965038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 19965038 is about 4468.2253747993. The cubic root of 19965038 is about 271.2835002902.

The spelling of 19965038 in words is "nineteen million, nine hundred sixty-five thousand, thirty-eight".