12670040 has 32 divisors (see below), whose sum is σ = 28836000. Its totient is φ = 5009664.

The previous prime is 12670039. The next prime is 12670061. The reversal of 12670040 is 4007621.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12669994 and 12670021.

It is a congruent number.

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, 1781 + ... + 5339.

It is an arithmetic number, because the mean of its divisors is an integer number (901125).

Almost surely, 2^12670040 is an apocalyptic number.

12670040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 3559×3560.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12670040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14418000).

12670040 is an abundant number, since it is smaller than the sum of its proper divisors (16165960).

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

12670040 is a wasteful number, since it uses less digits than its factorization.

12670040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659 (or 3655 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12670040 is about 3559.4999648827. The cubic root of 12670040 is about 233.1270467037.

Adding to 12670040 its reverse (4007621), we get a palindrome (16677661).

The spelling of 12670040 in words is "twelve million, six hundred seventy thousand, forty".