12400034 has 8 divisors (see below), whose sum is σ = 18824400. Its totient is φ = 6125236.

The previous prime is 12400009. The next prime is 12400043. The reversal of 12400034 is 43000421.

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

It is a junction number, because it is equal to n+sod(n) for n = 12399991 and 12400018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37184 + ... + 37515.

It is an arithmetic number, because the mean of its divisors is an integer number (2353050).

Almost surely, 2^12400034 is an apocalyptic number.

12400034 is a deficient number, since it is larger than the sum of its proper divisors (6424366).

12400034 is an equidigital number, since it uses as much as digits as its factorization.

12400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74784.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12400034 is about 3521.3682000041. The cubic root of 12400034 is about 231.4591170009.

Adding to 12400034 its reverse (43000421), we get a palindrome (55400455).

The spelling of 12400034 in words is "twelve million, four hundred thousand, thirty-four".