12262140 has 108 divisors (see below), whose sum is σ = 40956552. Its totient is φ = 2967360.

The previous prime is 12262123. The next prime is 12262169. The reversal of 12262140 is 4126221.

12262140 is a `hidden beast` number, since 1 + 2 + 2 + 621 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21499 + ... + 22061.

Almost surely, 2^12262140 is an apocalyptic number.

12262140 is a gapful number since it is divisible by the number (10) 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 12262140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20478276).

12262140 is an abundant number, since it is smaller than the sum of its proper divisors (28694412).

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

12262140 is a wasteful number, since it uses less digits than its factorization.

12262140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12262140 is about 3501.7338562489. The cubic root of 12262140 is about 230.5979400688.

Adding to 12262140 its reverse (4126221), we get a palindrome (16388361).

The spelling of 12262140 in words is "twelve million, two hundred sixty-two thousand, one hundred forty".