12642049 has 24 divisors (see below), whose sum is σ = 15941760. Its totient is φ = 9961056.

The previous prime is 12642041. The next prime is 12642053. The reversal of 12642049 is 94024621.

It is not a de Polignac number, because 12642049 - 2³ = 12642041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12642041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34264 + ... + 34630.

It is an arithmetic number, because the mean of its divisors is an integer number (664240).

Almost surely, 2^12642049 is an apocalyptic number.

12642049 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12642049 is a deficient number, since it is larger than the sum of its proper divisors (3299711).

12642049 is a wasteful number, since it uses less digits than its factorization.

12642049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12642049 is about 3555.5659183877. The cubic root of 12642049 is about 232.9552432345.

The spelling of 12642049 in words is "twelve million, six hundred forty-two thousand, forty-nine".