19268964 has 144 divisors (see below), whose sum is σ = 60540480. Its totient is φ = 5080320.

The previous prime is 19268957. The next prime is 19268981. The reversal of 19268964 is 46986291.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97714 + ... + 97910.

It is an arithmetic number, because the mean of its divisors is an integer number (420420).

Almost surely, 2^19268964 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 19268964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30270240).

19268964 is an abundant number, since it is smaller than the sum of its proper divisors (41271516).

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

19268964 is a wasteful number, since it uses less digits than its factorization.

19268964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 245 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 19268964 is about 4389.6428100701. The cubic root of 19268964 is about 268.0933995392.

The spelling of 19268964 in words is "nineteen million, two hundred sixty-eight thousand, nine hundred sixty-four".