19960100 has 18 divisors (see below), whose sum is σ = 43313634. Its totient is φ = 7984000.

The previous prime is 19960093. The next prime is 19960117. The reversal of 19960100 is 106991.

It can be written as a sum of positive squares in 3 ways, for example, as 652864 + 19307236 = 808^2 + 4394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19960100.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99701 + ... + 99900.

It is an arithmetic number, because the mean of its divisors is an integer number (2406313).

Almost surely, 2^19960100 is an apocalyptic number.

19960100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19960100 is an abundant number, since it is smaller than the sum of its proper divisors (23353534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19960100 is a wasteful number, since it uses less digits than its factorization.

19960100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199615 (or 199608 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 19960100 is about 4467.6727722607. The cubic root of 19960100 is about 271.2611327164.

The spelling of 19960100 in words is "nineteen million, nine hundred sixty thousand, one hundred".