1528648542 has 12 divisors (see below), whose sum is σ = 3312071880. Its totient is φ = 509549508.

The previous prime is 1528648529. The next prime is 1528648567. The reversal of 1528648542 is 2458468251.

1528648542 is a `hidden beast` number, since 1 + 52 + 86 + 485 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42462442 + ... + 42462477.

It is an arithmetic number, because the mean of its divisors is an integer number (276005990).

Almost surely, 2^1528648542 is an apocalyptic number.

1528648542 is an abundant number, since it is smaller than the sum of its proper divisors (1783423338).

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

1528648542 is a wasteful number, since it uses less digits than its factorization.

1528648542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84924927 (or 84924924 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 1528648542 is about 39097.9352651774. The cubic root of 1528648542 is about 1151.9559761461.

The spelling of 1528648542 in words is "one billion, five hundred twenty-eight million, six hundred forty-eight thousand, five hundred forty-two".