19868352 has 56 divisors (see below), whose sum is σ = 60082176. Its totient is φ = 5676288.

The previous prime is 19868351. The next prime is 19868353. The reversal of 19868352 is 25386891.

It is an interprime number because it is at equal distance from previous prime (19868351) and next prime (19868353).

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×19868352² = 789502822391808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (19868351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6048 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (1072896).

Almost surely, 2^19868352 is an apocalyptic number.

19868352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19868352 is an abundant number, since it is smaller than the sum of its proper divisors (40213824).

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

19868352 is a wasteful number, since it uses less digits than its factorization.

19868352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14805 (or 14795 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 19868352 is about 4457.3929600160. The cubic root of 19868352 is about 270.8448706617.

The spelling of 19868352 in words is "nineteen million, eight hundred sixty-eight thousand, three hundred fifty-two".