12400440034 has 8 divisors (see below), whose sum is σ = 18784825308. Its totient is φ = 6138831600.

The previous prime is 12400440029. The next prime is 12400440077. The reversal of 12400440034 is 43004400421.

It can be written as a sum of positive squares in 2 ways, for example, as 11630544025 + 769896009 = 107845^2 + 27747^2 .

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 = 12400439987 and 12400440014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30693957 + ... + 30694360.

Almost surely, 2^12400440034 is an apocalyptic number.

12400440034 is a deficient number, since it is larger than the sum of its proper divisors (6384385274).

12400440034 is a wasteful number, since it uses less digits than its factorization.

12400440034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61388420.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12400440034 its reverse (43004400421), we get a palindrome (55404840455).

The spelling of 12400440034 in words is "twelve billion, four hundred million, four hundred forty thousand, thirty-four".