1056890 has 16 divisors (see below), whose sum is σ = 2014632. Its totient is φ = 397824.

The previous prime is 1056871. The next prime is 1056893. The reversal of 1056890 is 986501.

It can be written as a sum of positive squares in 4 ways, for example, as 1018081 + 38809 = 1009^2 + 197^2 .

It is a super-2 number, since 2×1056890² = 2234032944200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939 + ... + 3278.

2^1056890 is an apocalyptic number.

1056890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056890 is a deficient number, since it is larger than the sum of its proper divisors (957742).

1056890 is a wasteful number, since it uses less digits than its factorization.

1056890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1056890 is about 1028.0515551275. The cubic root of 1056890 is about 101.8614677096.

The spelling of 1056890 in words is "one million, fifty-six thousand, eight hundred ninety".