1345226656 has 48 divisors (see below), whose sum is σ = 2702827008. Its totient is φ = 658886400.

The previous prime is 1345226651. The next prime is 1345226669. The reversal of 1345226656 is 6566225431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1345226651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527721 + ... + 530263.

It is an arithmetic number, because the mean of its divisors is an integer number (56308896).

Almost surely, 2^1345226656 is an apocalyptic number.

1345226656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345226656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351413504).

1345226656 is an abundant number, since it is smaller than the sum of its proper divisors (1357600352).

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

1345226656 is a wasteful number, since it uses less digits than its factorization.

1345226656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885 (or 2877 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 1345226656 is about 36677.3316368571. The cubic root of 1345226656 is about 1103.9053076383.

The spelling of 1345226656 in words is "one billion, three hundred forty-five million, two hundred twenty-six thousand, six hundred fifty-six".