12740022 has 24 divisors (see below), whose sum is σ = 28804464. Its totient is φ = 4061904.

The previous prime is 12740017. The next prime is 12740059. The reversal of 12740022 is 22004721.

12740022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12739977 and 12740004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14973 + ... + 15800.

It is an arithmetic number, because the mean of its divisors is an integer number (1200186).

Almost surely, 2^12740022 is an apocalyptic number.

12740022 is an abundant number, since it is smaller than the sum of its proper divisors (16064442).

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

12740022 is a wasteful number, since it uses less digits than its factorization.

12740022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30804 (or 30801 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 12740022 is about 3569.3167413386. The cubic root of 12740022 is about 233.5554786885. Note that the first 3 decimals are identical.

Adding to 12740022 its reverse (22004721), we get a palindrome (34744743).

The spelling of 12740022 in words is "twelve million, seven hundred forty thousand, twenty-two".