19965332 has 6 divisors (see below), whose sum is σ = 34939338. Its totient is φ = 9982664.

The previous prime is 19965307. The next prime is 19965347. The reversal of 19965332 is 23356991.

It can be written as a sum of positive squares in only one way, i.e., 18957316 + 1008016 = 4354^2 + 1004^2 .

It is a super-2 number, since 2×19965332² = 797228963740448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495663 + ... + 2495670.

It is an arithmetic number, because the mean of its divisors is an integer number (5823223).

Almost surely, 2^19965332 is an apocalyptic number.

It is an amenable number.

19965332 is a deficient number, since it is larger than the sum of its proper divisors (14974006).

19965332 is a wasteful number, since it uses less digits than its factorization.

19965332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991337 (or 4991335 counting only the distinct ones).

The product of its digits is 43740, while the sum is 38.

The square root of 19965332 is about 4468.2582736453. The cubic root of 19965332 is about 271.2848319006.

The spelling of 19965332 in words is "nineteen million, nine hundred sixty-five thousand, three hundred thirty-two".