19340912 has 40 divisors (see below), whose sum is σ = 39365040. Its totient is φ = 9192960.

The previous prime is 19340911. The next prime is 19340921. The reversal of 19340912 is 21904391.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19340911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33587 + ... + 34157.

It is an arithmetic number, because the mean of its divisors is an integer number (984126).

Almost surely, 2^19340912 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 19340912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19682520).

19340912 is an abundant number, since it is smaller than the sum of its proper divisors (20024128).

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

19340912 is a wasteful number, since it uses less digits than its factorization.

19340912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19340912 is about 4397.8303741732. The cubic root of 19340912 is about 268.4266612937.

The spelling of 19340912 in words is "nineteen million, three hundred forty thousand, nine hundred twelve".