12812342 has 16 divisors (see below), whose sum is σ = 19570992. Its totient is φ = 6289920.

The previous prime is 12812333. The next prime is 12812347. The reversal of 12812342 is 24321821.

It is a happy number.

It is a super-2 number, since 2×12812342² = 328312215049928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40778 + ... + 41090.

It is an arithmetic number, because the mean of its divisors is an integer number (1223187).

Almost surely, 2^12812342 is an apocalyptic number.

12812342 is a deficient number, since it is larger than the sum of its proper divisors (6758650).

12812342 is a wasteful number, since it uses less digits than its factorization.

12812342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its digits is 768, while the sum is 23.

The square root of 12812342 is about 3579.4331953537. The cubic root of 12812342 is about 233.9965787115.

The spelling of 12812342 in words is "twelve million, eight hundred twelve thousand, three hundred forty-two".