1049782857 has 16 divisors (see below), whose sum is σ = 1423681920. Its totient is φ = 687961472.

The previous prime is 1049782849. The next prime is 1049782879. The reversal of 1049782857 is 7582879401.

1049782857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1049782857 - 2³ = 1049782849 is a prime.

It is a super-2 number, since 2×1049782857² = 2204088093702164898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1049782807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34828 + ... + 57554.

It is an arithmetic number, because the mean of its divisors is an integer number (88980120).

Almost surely, 2^1049782857 is an apocalyptic number.

It is an amenable number.

1049782857 is a deficient number, since it is larger than the sum of its proper divisors (373899063).

1049782857 is a wasteful number, since it uses less digits than its factorization.

1049782857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22992.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The square root of 1049782857 is about 32400.3527295614. The cubic root of 1049782857 is about 1016.3262874276.

The spelling of 1049782857 in words is "one billion, forty-nine million, seven hundred eighty-two thousand, eight hundred fifty-seven".