1390222848 has 160 divisors (see below), whose sum is σ = 4258298880. Its totient is φ = 394813440.

The previous prime is 1390222843. The next prime is 1390222849. The reversal of 1390222848 is 8482220931.

It is a super-2 number, since 2×1390222848² = 3865439134202462208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390222843) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2569458 + ... + 2569998.

It is an arithmetic number, because the mean of its divisors is an integer number (26614368).

Almost surely, 2^1390222848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390222848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2129149440).

1390222848 is an abundant number, since it is smaller than the sum of its proper divisors (2868076032).

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

1390222848 is an equidigital number, since it uses as much as digits as its factorization.

1390222848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1390222848 is about 37285.6922692874. The cubic root of 1390222848 is about 1116.0786676473.

The spelling of 1390222848 in words is "one billion, three hundred ninety million, two hundred twenty-two thousand, eight hundred forty-eight".