19985962 has 8 divisors (see below), whose sum is σ = 30005892. Its totient is φ = 9984000.

The previous prime is 19985941. The next prime is 19985963. The reversal of 19985962 is 26958991.

It can be written as a sum of positive squares in 2 ways, for example, as 18567481 + 1418481 = 4309^2 + 1191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19985963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239 + ... + 6442.

Almost surely, 2^19985962 is an apocalyptic number.

19985962 is a deficient number, since it is larger than the sum of its proper divisors (10019930).

19985962 is a wasteful number, since it uses less digits than its factorization.

19985962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8984.

The product of its digits is 349920, while the sum is 49.

The square root of 19985962 is about 4470.5661833821. The cubic root of 19985962 is about 271.3782384707.

The spelling of 19985962 in words is "nineteen million, nine hundred eighty-five thousand, nine hundred sixty-two".