12765630 has 16 divisors (see below), whose sum is σ = 30637584. Its totient is φ = 3404160.

The previous prime is 12765619. The next prime is 12765631. The reversal of 12765630 is 3656721.

It is a super-2 number, since 2×12765630² = 325922618593800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 425521 = 12765630 / (1 + 2 + 7 + 6 + 5 + 6 + 3 + 0).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212731 + ... + 212790.

It is an arithmetic number, because the mean of its divisors is an integer number (1914849).

Almost surely, 2^12765630 is an apocalyptic number.

12765630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12765630 is an abundant number, since it is smaller than the sum of its proper divisors (17871954).

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

12765630 is a wasteful number, since it uses less digits than its factorization.

12765630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425531.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 12765630 is about 3572.9021817005. The cubic root of 12765630 is about 233.7118595248.

The spelling of 12765630 in words is "twelve million, seven hundred sixty-five thousand, six hundred thirty".