2057681028 has 24 divisors (see below), whose sum is σ = 5170583488. Its totient is φ = 633132576.

The previous prime is 2057681027. The next prime is 2057681053. The reversal of 2057681028 is 8201867502.

It is a super-2 number, since 2×2057681028² = 8468102425982273568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2057681023) 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, 6594976 + ... + 6595287.

Almost surely, 2^2057681028 is an apocalyptic number.

It is an amenable number.

2057681028 is an abundant number, since it is smaller than the sum of its proper divisors (3112902460).

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

2057681028 is a wasteful number, since it uses less digits than its factorization.

2057681028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13190283 (or 13190281 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 2057681028 is about 45361.6691491837. The cubic root of 2057681028 is about 1271.9186961007.

The spelling of 2057681028 in words is "two billion, fifty-seven million, six hundred eighty-one thousand, twenty-eight".