1538004528 has 30 divisors (see below), whose sum is σ = 4304276964. Its totient is φ = 512668128.

The previous prime is 1538004511. The next prime is 1538004539. The reversal of 1538004528 is 8254008351.

It is a happy number.

1538004528 is a `hidden beast` number, since 1 + 53 + 80 + 0 + 4 + 528 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1538004492 and 1538004501.

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, 5340150 + ... + 5340437.

Almost surely, 2^1538004528 is an apocalyptic number.

1538004528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1538004528 is an abundant number, since it is smaller than the sum of its proper divisors (2766272436).

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

1538004528 is a wasteful number, since it uses less digits than its factorization.

1538004528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680601 (or 10680592 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1538004528 is about 39217.4008317736. The cubic root of 1538004528 is about 1154.3013529351.

The spelling of 1538004528 in words is "one billion, five hundred thirty-eight million, four thousand, five hundred twenty-eight".