12800046 has 16 divisors (see below), whose sum is σ = 29257344. Its totient is φ = 3657144.

The previous prime is 12800041. The next prime is 12800063. The reversal of 12800046 is 64000821.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12799995 and 12800031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800041) 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, 152340 + ... + 152423.

It is an arithmetic number, because the mean of its divisors is an integer number (1828584).

Almost surely, 2^12800046 is an apocalyptic number.

12800046 is an abundant number, since it is smaller than the sum of its proper divisors (16457298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12800046 is a wasteful number, since it uses less digits than its factorization.

12800046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304775.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12800046 is about 3577.7151926893. The cubic root of 12800046 is about 233.9216992751.

Adding to 12800046 its reverse (64000821), we get a palindrome (76800867).

The spelling of 12800046 in words is "twelve million, eight hundred thousand, forty-six".