12642730 has 32 divisors (see below), whose sum is σ = 24883200. Its totient is φ = 4604160.

The previous prime is 12642703. The next prime is 12642743. The reversal of 12642730 is 3724621.

It is a junction number, because it is equal to n+sod(n) for n = 12642695 and 12642704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4071 + ... + 6469.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^12642730 is an apocalyptic number.

12642730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12642730 is a deficient number, since it is larger than the sum of its proper divisors (12240470).

12642730 is a wasteful number, since it uses less digits than its factorization.

12642730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 12642730 is about 3555.6616824439. The cubic root of 12642730 is about 232.9594260921.

The spelling of 12642730 in words is "twelve million, six hundred forty-two thousand, seven hundred thirty".