1639104 has 28 divisors (see below), whose sum is σ = 4337304. Its totient is φ = 546304.

The previous prime is 1639097. The next prime is 1639147. The reversal of 1639104 is 4019361.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 1 + 6² + 3¹² + 9⁵ + 1 + 0 + 4¹⁰ .

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, 4077 + ... + 4460.

2^1639104 is an apocalyptic number.

It is an amenable number.

1639104 is an abundant number, since it is smaller than the sum of its proper divisors (2698200).

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

1639104 is an equidigital number, since it uses as much as digits as its factorization.

1639104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552 (or 8542 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1639104 is about 1280.2749704653. The cubic root of 1639104 is about 117.9058906830.

The spelling of 1639104 in words is "one million, six hundred thirty-nine thousand, one hundred four".