21334192 has 40 divisors (see below), whose sum is σ = 46157760. Its totient is φ = 9468480.

The previous prime is 21334189. The next prime is 21334213. The reversal of 21334192 is 29143312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6159 + ... + 8977.

It is an arithmetic number, because the mean of its divisors is an integer number (1153944).

Almost surely, 2^21334192 is an apocalyptic number.

21334192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21334192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23078880).

21334192 is an abundant number, since it is smaller than the sum of its proper divisors (24823568).

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

21334192 is a wasteful number, since it uses less digits than its factorization.

21334192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2875 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 21334192 is about 4618.8951059750. The cubic root of 21334192 is about 277.3482307292.

The spelling of 21334192 in words is "twenty-one million, three hundred thirty-four thousand, one hundred ninety-two".