19972352 has 18 divisors (see below), whose sum is σ = 39867198. Its totient is φ = 9986048.

The previous prime is 19972343. The next prime is 19972369. The reversal of 19972352 is 25327991.

It can be written as a sum of positive squares in only one way, i.e., 10137856 + 9834496 = 3184^2 + 3136^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38753 + ... + 39264.

Almost surely, 2^19972352 is an apocalyptic number.

It is an amenable number.

19972352 is a deficient number, since it is larger than the sum of its proper divisors (19894846).

19972352 is an frugal number, since it uses more digits than its factorization.

19972352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78033 (or 78019 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 19972352 is about 4469.0437455903. The cubic root of 19972352 is about 271.3166236144.

The spelling of 19972352 in words is "nineteen million, nine hundred seventy-two thousand, three hundred fifty-two".