19954968 has 64 divisors (see below), whose sum is σ = 54933120. Its totient is φ = 5990400.

The previous prime is 19954939. The next prime is 19954969. The reversal of 19954968 is 86945991.

It is a self number, because there is not a number n which added to its sum of digits gives 19954968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19954969) 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 15 ways as a sum of consecutive naturals, for example, 34296 + ... + 34872.

It is an arithmetic number, because the mean of its divisors is an integer number (858330).

Almost surely, 2^19954968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19954968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27466560).

19954968 is an abundant number, since it is smaller than the sum of its proper divisors (34978152).

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

19954968 is a wasteful number, since it uses less digits than its factorization.

19954968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 724 counting only the distinct ones).

The product of its digits is 699840, while the sum is 51.

The square root of 19954968 is about 4467.0983870965. The cubic root of 19954968 is about 271.2378824745.

The spelling of 19954968 in words is "nineteen million, nine hundred fifty-four thousand, nine hundred sixty-eight".