1320554232 has 128 divisors (see below), whose sum is σ = 3764232000. Its totient is φ = 428820480.

The previous prime is 1320554219. The next prime is 1320554233. The reversal of 1320554232 is 2324550231.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1320554196 and 1320554205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320554233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1402882 + ... + 1403822.

Almost surely, 2^1320554232 is an apocalyptic number.

1320554232 is a gapful number since it is divisible by the number (12) 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 1320554232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1882116000).

1320554232 is an abundant number, since it is smaller than the sum of its proper divisors (2443677768).

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

1320554232 is a wasteful number, since it uses less digits than its factorization.

1320554232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1320554232 is about 36339.4308155755. The cubic root of 1320554232 is about 1097.1148170498.

The spelling of 1320554232 in words is "one billion, three hundred twenty million, five hundred fifty-four thousand, two hundred thirty-two".