1528669752 has 16 divisors (see below), whose sum is σ = 3821674440. Its totient is φ = 509556576.

The previous prime is 1528669741. The next prime is 1528669787. The reversal of 1528669752 is 2579668251.

It is a junction number, because it is equal to n+sod(n) for n = 1528669695 and 1528669704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31847263 + ... + 31847310.

Almost surely, 2^1528669752 is an apocalyptic number.

1528669752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1528669752 is an abundant number, since it is smaller than the sum of its proper divisors (2293004688).

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

1528669752 is a wasteful number, since it uses less digits than its factorization.

1528669752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63694582 (or 63694578 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The square root of 1528669752 is about 39098.2065061813. The cubic root of 1528669752 is about 1151.9613039182.

The spelling of 1528669752 in words is "one billion, five hundred twenty-eight million, six hundred sixty-nine thousand, seven hundred fifty-two".