1223590320 has 160 divisors (see below), whose sum is σ = 4225890240. Its totient is φ = 325416960.

The previous prime is 1223590309. The next prime is 1223590337. The reversal of 1223590320 is 230953221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1427332 + ... + 1428188.

It is an arithmetic number, because the mean of its divisors is an integer number (26411814).

Almost surely, 2^1223590320 is an apocalyptic number.

1223590320 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 1223590320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112945120).

1223590320 is an abundant number, since it is smaller than the sum of its proper divisors (3002299920).

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

1223590320 is a wasteful number, since it uses less digits than its factorization.

1223590320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1223590320 is about 34979.8559173705. The cubic root of 1223590320 is about 1069.5768903881.

The spelling of 1223590320 in words is "one billion, two hundred twenty-three million, five hundred ninety thousand, three hundred twenty".