12400246 has 8 divisors (see below), whose sum is σ = 18617544. Its totient is φ = 6194400.

The previous prime is 12400237. The next prime is 12400247. The reversal of 12400246 is 64200421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12400246² = 307532201721032, which contains 22 as substring.

12400246 is a modest number, since divided by 246 gives 124 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766 + ... + 5038.

It is an arithmetic number, because the mean of its divisors is an integer number (2327193).

Almost surely, 2^12400246 is an apocalyptic number.

12400246 is a deficient number, since it is larger than the sum of its proper divisors (6217298).

12400246 is a wasteful number, since it uses less digits than its factorization.

12400246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12400246 is about 3521.3983018114. The cubic root of 12400246 is about 231.4604360578.

Adding to 12400246 its reverse (64200421), we get a palindrome (76600667).

The spelling of 12400246 in words is "twelve million, four hundred thousand, two hundred forty-six".