19980348 has 12 divisors (see below), whose sum is σ = 46620840. Its totient is φ = 6660112.

The previous prime is 19980347. The next prime is 19980379. The reversal of 19980348 is 84308991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×19980348² = 798428612402208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19980347) 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, 832503 + ... + 832526.

It is an arithmetic number, because the mean of its divisors is an integer number (3885070).

Almost surely, 2^19980348 is an apocalyptic number.

It is an amenable number.

19980348 is an abundant number, since it is smaller than the sum of its proper divisors (26640492).

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

19980348 is a wasteful number, since it uses less digits than its factorization.

19980348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665036 (or 1665034 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 19980348 is about 4469.9382546071. The cubic root of 19980348 is about 271.3528262988.

The spelling of 19980348 in words is "nineteen million, nine hundred eighty thousand, three hundred forty-eight".