1068840 has 48 divisors (see below), whose sum is σ = 3474900. Its totient is φ = 284928.

The previous prime is 1068817. The next prime is 1068857. The reversal of 1068840 is 488601.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 181476 = 942^2 + 426^2 .

It is a super-2 number, since 2×1068840² = 2284837891200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125 + ... + 1844.

2^1068840 is an apocalyptic number.

1068840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1068840 is an abundant number, since it is smaller than the sum of its proper divisors (2406060).

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

1068840 is a wasteful number, since it uses less digits than its factorization.

1068840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986 (or 2979 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1068840 is about 1033.8471840654. The cubic root of 1068840 is about 102.2439374857.

The spelling of 1068840 in words is "one million, sixty-eight thousand, eight hundred forty".