19820348 has 6 divisors (see below), whose sum is σ = 34685616. Its totient is φ = 9910172.

The previous prime is 19820347. The next prime is 19820387. The reversal of 19820348 is 84302891.

It is a happy number.

It is a super-2 number, since 2×19820348² = 785692389682208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19820347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2477540 + ... + 2477547.

It is an arithmetic number, because the mean of its divisors is an integer number (5780936).

Almost surely, 2^19820348 is an apocalyptic number.

It is an amenable number.

19820348 is a deficient number, since it is larger than the sum of its proper divisors (14865268).

19820348 is a wasteful number, since it uses less digits than its factorization.

19820348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955091 (or 4955089 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 19820348 is about 4452.0049415965. The cubic root of 19820348 is about 270.6265649805.

The spelling of 19820348 in words is "nineteen million, eight hundred twenty thousand, three hundred forty-eight".