12922830 has 48 divisors (see below), whose sum is σ = 33873840. Its totient is φ = 3417984.

The previous prime is 12922823. The next prime is 12922837. The reversal of 12922830 is 3822921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12922823) and next prime (12922837).

It is a junction number, because it is equal to n+sod(n) for n = 12922794 and 12922803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11994 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (705705).

Almost surely, 2^12922830 is an apocalyptic number.

12922830 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 12922830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16936920).

12922830 is an abundant number, since it is smaller than the sum of its proper divisors (20951010).

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

12922830 is a wasteful number, since it uses less digits than its factorization.

12922830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12922830 is about 3594.8337930981. The cubic root of 12922830 is about 234.6672822850.

Subtracting from 12922830 its reverse (3822921), we obtain a palindrome (9099909).

The spelling of 12922830 in words is "twelve million, nine hundred twenty-two thousand, eight hundred thirty".