1200023528 has 32 divisors (see below), whose sum is σ = 2561319360. Its totient is φ = 521748480.

The previous prime is 1200023491. The next prime is 1200023549. The reversal of 1200023528 is 8253200021.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294425 + ... + 298472.

It is an arithmetic number, because the mean of its divisors is an integer number (80041230).

Almost surely, 2^1200023528 is an apocalyptic number.

It is an amenable number.

1200023528 is an abundant number, since it is smaller than the sum of its proper divisors (1361295832).

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

1200023528 is a wasteful number, since it uses less digits than its factorization.

1200023528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592937 (or 592933 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1200023528 is about 34641.3557471413. The cubic root of 1200023528 is about 1062.6655142013.

Adding to 1200023528 its reverse (8253200021), we get a palindrome (9453223549).

The spelling of 1200023528 in words is "one billion, two hundred million, twenty-three thousand, five hundred twenty-eight".