1320753928 has 48 divisors (see below), whose sum is σ = 2719526400. Its totient is φ = 600949440.

The previous prime is 1320753877. The next prime is 1320753937. The reversal of 1320753928 is 8293570231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89113 + ... + 102871.

It is an arithmetic number, because the mean of its divisors is an integer number (56656800).

Almost surely, 2^1320753928 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 1320753928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359763200).

1320753928 is an abundant number, since it is smaller than the sum of its proper divisors (1398772472).

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

1320753928 is a wasteful number, since it uses less digits than its factorization.

1320753928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862 (or 13845 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1320753928 is about 36342.1783606872. The cubic root of 1320753928 is about 1097.1701166588.

The spelling of 1320753928 in words is "one billion, three hundred twenty million, seven hundred fifty-three thousand, nine hundred twenty-eight".