1064644 has 24 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 446016.

The previous prime is 1064629. The next prime is 1064653. The reversal of 1064644 is 4464601.

1064644 is nontrivially palindromic in base 8.

It is a super-2 number, since 2×1064644² = 2266933693472, 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 7 ways as a sum of consecutive naturals, for example, 912 + ... + 1720.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1064644 is an apocalyptic number.

1064644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1064644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088640).

1064644 is an abundant number, since it is smaller than the sum of its proper divisors (1112636).

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

1064644 is a wasteful number, since it uses less digits than its factorization.

1064644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1064644 is about 1031.8158750475. The cubic root of 1064644 is about 102.1099672649.

The spelling of 1064644 in words is "one million, sixty-four thousand, six hundred forty-four".