19964752 has 10 divisors (see below), whose sum is σ = 38681738. Its totient is φ = 9982368.

The previous prime is 19964743. The next prime is 19964753. The reversal of 19964752 is 25746991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14470416 + 5494336 = 3804^2 + 2344^2 .

It is a super-3 number, since 3×19964752³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19964699 and 19964708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19964753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623883 + ... + 623914.

Almost surely, 2^19964752 is an apocalyptic number.

It is an amenable number.

19964752 is a deficient number, since it is larger than the sum of its proper divisors (18716986).

19964752 is a wasteful number, since it uses less digits than its factorization.

19964752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247805 (or 1247799 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 19964752 is about 4468.1933709274. The cubic root of 19964752 is about 271.2822049016.

The spelling of 19964752 in words is "nineteen million, nine hundred sixty-four thousand, seven hundred fifty-two".