1068890 has 16 divisors (see below), whose sum is σ = 1947240. Its totient is φ = 422400.

The previous prime is 1068889. The next prime is 1068901. The reversal of 1068890 is 988601.

It can be written as a sum of positive squares in 4 ways, for example, as 310249 + 758641 = 557^2 + 871^2 .

It is a super-2 number, since 2×1068890² = 2285051664200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 1490.

2^1068890 is an apocalyptic number.

1068890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1068890 is a deficient number, since it is larger than the sum of its proper divisors (878350).

1068890 is a wasteful number, since it uses less digits than its factorization.

1068890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1068890 is about 1033.8713653061. The cubic root of 1068890 is about 102.2455317739.

It can be divided in two parts, 10 and 68890, that multiplied together give a square (688900 = 830²).

The spelling of 1068890 in words is "one million, sixty-eight thousand, eight hundred ninety".