1068644 has 12 divisors (see below), whose sum is σ = 1877484. Its totient is φ = 532224.

The previous prime is 1068631. The next prime is 1068677. The reversal of 1068644 is 4468601.

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 1000000 = 262^2 + 1000^2 .

It is a super-2 number, since 2×1068644² = 2283999997472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (156457).

2^1068644 is an apocalyptic number.

It is an amenable number.

1068644 is a deficient number, since it is larger than the sum of its proper divisors (808840).

1068644 is a wasteful number, since it uses less digits than its factorization.

1068644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1068644 is about 1033.7523881472. The cubic root of 1068644 is about 102.2376873962.

The spelling of 1068644 in words is "one million, sixty-eight thousand, six hundred forty-four".