1038720528 has 30 divisors (see below), whose sum is σ = 2906975214. Its totient is φ = 346240128.

The previous prime is 1038720517. The next prime is 1038720563. The reversal of 1038720528 is 8250278301.

1038720528 is a `hidden beast` number, since 103 + 8 + 7 + 20 + 528 = 666.

It can be written as a sum of positive squares in only one way, i.e., 562258944 + 476461584 = 23712^2 + 21828^2 .

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 = 1038720492 and 1038720501.

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, 3606525 + ... + 3606812.

Almost surely, 2^1038720528 is an apocalyptic number.

1038720528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1038720528 is an abundant number, since it is smaller than the sum of its proper divisors (1868254686).

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

1038720528 is a wasteful number, since it uses less digits than its factorization.

1038720528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213351 (or 7213342 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1038720528 is about 32229.1875169077. The cubic root of 1038720528 is about 1012.7437496368.

Adding to 1038720528 its reverse (8250278301), we get a palindrome (9288998829).

The spelling of 1038720528 in words is "one billion, thirty-eight million, seven hundred twenty thousand, five hundred twenty-eight".