1528313380 has 48 divisors (see below), whose sum is σ = 3503896704. Its totient is φ = 555326720.

The previous prime is 1528313377. The next prime is 1528313387. The reversal of 1528313380 is 833138251.

1528313380 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1528313387) 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, 525009 + ... + 527911.

It is an arithmetic number, because the mean of its divisors is an integer number (72997848).

Almost surely, 2^1528313380 is an apocalyptic number.

1528313380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1528313380 is an abundant number, since it is smaller than the sum of its proper divisors (1975583324).

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

1528313380 is a wasteful number, since it uses less digits than its factorization.

1528313380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316 (or 5314 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1528313380 is about 39093.6488447932. The cubic root of 1528313380 is about 1151.8717797510.

The spelling of 1528313380 in words is "one billion, five hundred twenty-eight million, three hundred thirteen thousand, three hundred eighty".