2115200428 has 24 divisors (see below), whose sum is σ = 4213681920. Its totient is φ = 919651920.

The previous prime is 2115200419. The next prime is 2115200447. The reversal of 2115200428 is 8240025112.

It is a super-3 number, since 3×2115200428³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 1044048 + ... + 1046071.

It is an arithmetic number, because the mean of its divisors is an integer number (175570080).

Almost surely, 2^2115200428 is an apocalyptic number.

It is an amenable number.

2115200428 is a deficient number, since it is larger than the sum of its proper divisors (2098481492).

2115200428 is a wasteful number, since it uses less digits than its factorization.

2115200428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090157 (or 2090155 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 2115200428 is about 45991.3081788287. The cubic root of 2115200428 is about 1283.6614783216.

The spelling of 2115200428 in words is "two billion, one hundred fifteen million, two hundred thousand, four hundred twenty-eight".