1057828 has 12 divisors (see below), whose sum is σ = 1858780. Its totient is φ = 526752.

The previous prime is 1057807. The next prime is 1057831. The reversal of 1057828 is 8287501.

It can be written as a sum of positive squares in 2 ways, for example, as 338724 + 719104 = 582^2 + 848^2 .

It is a super-2 number, since 2×1057828² = 2238000155168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1057828.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138 + ... + 1846.

2^1057828 is an apocalyptic number.

It is an amenable number.

1057828 is a deficient number, since it is larger than the sum of its proper divisors (800952).

1057828 is a wasteful number, since it uses less digits than its factorization.

1057828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1057828 is about 1028.5076567532. The cubic root of 1057828 is about 101.8915931420.

The spelling of 1057828 in words is "one million, fifty-seven thousand, eight hundred twenty-eight".