19870952 has 8 divisors (see below), whose sum is σ = 37258050. Its totient is φ = 9935472.

The previous prime is 19870951. The next prime is 19870973. The reversal of 19870952 is 25907891.

It can be written as a sum of positive squares in only one way, i.e., 17355556 + 2515396 = 4166^2 + 1586^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (19870951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1241927 + ... + 1241942.

Almost surely, 2^19870952 is an apocalyptic number.

It is an amenable number.

19870952 is a deficient number, since it is larger than the sum of its proper divisors (17387098).

19870952 is a wasteful number, since it uses less digits than its factorization.

19870952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483875 (or 2483871 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 19870952 is about 4457.6846007765. The cubic root of 19870952 is about 270.8566845244.

The spelling of 19870952 in words is "nineteen million, eight hundred seventy thousand, nine hundred fifty-two".