12775442 has 16 divisors (see below), whose sum is σ = 20113920. Its totient is φ = 6074112.

The previous prime is 12775421. The next prime is 12775463. The reversal of 12775442 is 24457721.

It is an interprime number because it is at equal distance from previous prime (12775421) and next prime (12775463).

It is a junction number, because it is equal to n+sod(n) for n = 12775399 and 12775408.

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, 8159 + ... + 9597.

It is an arithmetic number, because the mean of its divisors is an integer number (1257120).

Almost surely, 2^12775442 is an apocalyptic number.

12775442 is a deficient number, since it is larger than the sum of its proper divisors (7338478).

12775442 is a wasteful number, since it uses less digits than its factorization.

12775442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657.

The product of its digits is 15680, while the sum is 32.

The square root of 12775442 is about 3574.2750313875. The cubic root of 12775442 is about 233.7717232235.

The spelling of 12775442 in words is "twelve million, seven hundred seventy-five thousand, four hundred forty-two".