19268730 has 96 divisors (see below), whose sum is σ = 55351296. Its totient is φ = 4620672.

The previous prime is 19268723. The next prime is 19268737. The reversal of 19268730 is 3786291.

It is an interprime number because it is at equal distance from previous prime (19268723) and next prime (19268737).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19268737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50119 + ... + 50501.

It is an arithmetic number, because the mean of its divisors is an integer number (576576).

Almost surely, 2^19268730 is an apocalyptic number.

19268730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19268730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27675648).

19268730 is an abundant number, since it is smaller than the sum of its proper divisors (36082566).

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

19268730 is a wasteful number, since it uses less digits than its factorization.

19268730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 19268730 is about 4389.6161563399. The cubic root of 19268730 is about 268.0923143034.

The spelling of 19268730 in words is "nineteen million, two hundred sixty-eight thousand, seven hundred thirty".