2049215128 has 16 divisors (see below), whose sum is σ = 3890916000. Its totient is φ = 1011637536.

The previous prime is 2049215123. The next prime is 2049215131. The reversal of 2049215128 is 8215129402.

It is a super-3 number, since 3×2049215128³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2049215093 and 2049215102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049215123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620583 + ... + 1621846.

It is an arithmetic number, because the mean of its divisors is an integer number (243182250).

Almost surely, 2^2049215128 is an apocalyptic number.

It is an amenable number.

2049215128 is a deficient number, since it is larger than the sum of its proper divisors (1841700872).

2049215128 is a wasteful number, since it uses less digits than its factorization.

2049215128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242514 (or 3242510 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2049215128 is about 45268.2573996393. The cubic root of 2049215128 is about 1270.1719501819.

The spelling of 2049215128 in words is "two billion, forty-nine million, two hundred fifteen thousand, one hundred twenty-eight".