2028657268 has 24 divisors (see below), whose sum is σ = 3962962080. Its totient is φ = 900671520.

The previous prime is 2028657221. The next prime is 2028657269. The reversal of 2028657268 is 8627568202.

It is a super-2 number, since 2×2028657268² = 8230900622018447648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028657269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534223 + ... + 538006.

It is an arithmetic number, because the mean of its divisors is an integer number (165123420).

Almost surely, 2^2028657268 is an apocalyptic number.

It is an amenable number.

2028657268 is a deficient number, since it is larger than the sum of its proper divisors (1934304812).

2028657268 is a wasteful number, since it uses less digits than its factorization.

2028657268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072287 (or 1072285 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 2028657268 is about 45040.6179797747. The cubic root of 2028657268 is about 1265.9101841583.

The spelling of 2028657268 in words is "two billion, twenty-eight million, six hundred fifty-seven thousand, two hundred sixty-eight".