8400012426 has 96 divisors (see below), whose sum is σ = 20784450960. Its totient is φ = 2428895232.

The previous prime is 8400012419. The next prime is 8400012451. The reversal of 8400012426 is 6242100048.

It can be written as a sum of positive squares in 8 ways, for example, as 2986731801 + 5413280625 = 54651^2 + 73575^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8400012426.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3694426 + ... + 3696698.

Almost surely, 2^8400012426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8400012426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10392225480).

8400012426 is an abundant number, since it is smaller than the sum of its proper divisors (12384438534).

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

8400012426 is a wasteful number, since it uses less digits than its factorization.

8400012426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240 (or 3237 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8400012426 is about 91651.5816884793. The cubic root of 8400012426 is about 2032.7937159896.

The spelling of 8400012426 in words is "eight billion, four hundred million, twelve thousand, four hundred twenty-six".