1226644432 has 20 divisors (see below), whose sum is σ = 2559441220. Its totient is φ = 566143488.

The previous prime is 1226644403. The next prime is 1226644453. The reversal of 1226644432 is 2344466221.

It can be written as a sum of positive squares in 2 ways, for example, as 199826496 + 1026817936 = 14136^2 + 32044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2948457 + ... + 2948872.

It is an arithmetic number, because the mean of its divisors is an integer number (127972061).

Almost surely, 2^1226644432 is an apocalyptic number.

It is an amenable number.

1226644432 is an abundant number, since it is smaller than the sum of its proper divisors (1332796788).

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

1226644432 is a wasteful number, since it uses less digits than its factorization.

1226644432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897350 (or 5897344 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

The square root of 1226644432 is about 35023.4840071630. The cubic root of 1226644432 is about 1070.4660478891.

The spelling of 1226644432 in words is "one billion, two hundred twenty-six million, six hundred forty-four thousand, four hundred thirty-two".