1348221840 has 320 divisors, whose sum is σ = 4936826880. Its totient is φ = 298045440.

The previous prime is 1348221827. The next prime is 1348221857. The reversal of 1348221840 is 481228431.

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 63 ways as a sum of consecutive naturals, for example, 10615857 + ... + 10615983.

It is an arithmetic number, because the mean of its divisors is an integer number (15427584).

Almost surely, 2^1348221840 is an apocalyptic number.

1348221840 is a gapful number since it is divisible by the number (10) 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 1348221840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2468413440).

1348221840 is an abundant number, since it is smaller than the sum of its proper divisors (3588605040).

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

1348221840 is a wasteful number, since it uses less digits than its factorization.

1348221840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1348221840 is about 36718.1404757921. The cubic root of 1348221840 is about 1104.7239921332.

The spelling of 1348221840 in words is "one billion, three hundred forty-eight million, two hundred twenty-one thousand, eight hundred forty".