12654340 has 12 divisors (see below), whose sum is σ = 26574156. Its totient is φ = 5061728.

The previous prime is 12654337. The next prime is 12654349. The reversal of 12654340 is 4345621.

It can be written as a sum of positive squares in 2 ways, for example, as 3904576 + 8749764 = 1976^2 + 2958^2 .

It is not an unprimeable number, because it can be changed into a prime (12654349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316339 + ... + 316378.

It is an arithmetic number, because the mean of its divisors is an integer number (2214513).

Almost surely, 2^12654340 is an apocalyptic number.

12654340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12654340 is an abundant number, since it is smaller than the sum of its proper divisors (13919816).

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

12654340 is a wasteful number, since it uses less digits than its factorization.

12654340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632726 (or 632724 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 12654340 is about 3557.2939153238. The cubic root of 12654340 is about 233.0307142672.

Adding to 12654340 its reverse (4345621), we get a palindrome (16999961).

The spelling of 12654340 in words is "twelve million, six hundred fifty-four thousand, three hundred forty".