1528868418 has 128 divisors (see below), whose sum is σ = 3906994176. Its totient is φ = 387374400.

The previous prime is 1528868413. The next prime is 1528868431. The reversal of 1528868418 is 8148688251.

It is not an unprimeable number, because it can be changed into a prime (1528868413) 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 63 ways as a sum of consecutive naturals, for example, 4165671 + ... + 4166037.

It is an arithmetic number, because the mean of its divisors is an integer number (30523392).

Almost surely, 2^1528868418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1528868418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953497088).

1528868418 is an abundant number, since it is smaller than the sum of its proper divisors (2378125758).

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

1528868418 is a wasteful number, since it uses less digits than its factorization.

1528868418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its digits is 983040, while the sum is 51.

The square root of 1528868418 is about 39100.7470261119. The cubic root of 1528868418 is about 1152.0112047401.

The spelling of 1528868418 in words is "one billion, five hundred twenty-eight million, eight hundred sixty-eight thousand, four hundred eighteen".