2028571538 has 16 divisors (see below), whose sum is σ = 3480275904. Its totient is φ = 868706640.

The previous prime is 2028571487. The next prime is 2028571561. The reversal of 2028571538 is 8351758202.

It is a super-3 number, since 3×2028571538³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028571495 and 2028571504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38045 + ... + 74192.

It is an arithmetic number, because the mean of its divisors is an integer number (217517244).

Almost surely, 2^2028571538 is an apocalyptic number.

2028571538 is a deficient number, since it is larger than the sum of its proper divisors (1451704366).

2028571538 is a wasteful number, since it uses less digits than its factorization.

2028571538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113537.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 2028571538 is about 45039.6662731864. Note that the first 3 decimals coincide. The cubic root of 2028571538 is about 1265.8923516720.

The spelling of 2028571538 in words is "two billion, twenty-eight million, five hundred seventy-one thousand, five hundred thirty-eight".