1038664 has 48 divisors (see below), whose sum is σ = 2274300. Its totient is φ = 443520.

The previous prime is 1038643. The next prime is 1038671. The reversal of 1038664 is 4668301.

It can be written as a sum of positive squares in 2 ways, for example, as 980100 + 58564 = 990^2 + 242^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28054 + ... + 28090.

2^1038664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1038664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137150).

1038664 is an abundant number, since it is smaller than the sum of its proper divisors (1235636).

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

1038664 is a wasteful number, since it uses less digits than its factorization.

1038664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1038664 is about 1019.1486643272. The cubic root of 1038664 is about 101.2725377863.

The spelling of 1038664 in words is "one million, thirty-eight thousand, six hundred sixty-four".