12630340 has 24 divisors (see below), whose sum is σ = 26613720. Its totient is φ = 5035008.

The previous prime is 12630313. The next prime is 12630367. The reversal of 12630340 is 4303621.

It is an interprime number because it is at equal distance from previous prime (12630313) and next prime (12630367).

It can be written as a sum of positive squares in 4 ways, for example, as 3437316 + 9193024 = 1854^2 + 3032^2 .

It is a congruent number.

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, 6166 + ... + 7954.

It is an arithmetic number, because the mean of its divisors is an integer number (1108905).

Almost surely, 2^12630340 is an apocalyptic number.

12630340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12630340 is an abundant number, since it is smaller than the sum of its proper divisors (13983380).

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

12630340 is a wasteful number, since it uses less digits than its factorization.

12630340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 12630340 is about 3553.9189636231. The cubic root of 12630340 is about 232.8833003742.

Adding to 12630340 its reverse (4303621), we get a palindrome (16933961).

The spelling of 12630340 in words is "twelve million, six hundred thirty thousand, three hundred forty".