19980596 has 12 divisors (see below), whose sum is σ = 35058660. Its totient is φ = 9963840.

The previous prime is 19980563. The next prime is 19980637. The reversal of 19980596 is 69508991.

It can be written as a sum of positive squares in 2 ways, for example, as 6948496 + 13032100 = 2636^2 + 3610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19980596.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4865 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (2921555).

Almost surely, 2^19980596 is an apocalyptic number.

It is an amenable number.

19980596 is a deficient number, since it is larger than the sum of its proper divisors (15078064).

19980596 is a wasteful number, since it uses less digits than its factorization.

19980596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13234 (or 13232 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 19980596 is about 4469.9659953964. The cubic root of 19980596 is about 271.3539489890.

The spelling of 19980596 in words is "nineteen million, nine hundred eighty thousand, five hundred ninety-six".