1606444 has 12 divisors (see below), whose sum is σ = 3212944. Its totient is φ = 688464.

The previous prime is 1606439. The next prime is 1606457. The reversal of 1606444 is 4446061.

1606444 is an admirable 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, 28659 + ... + 28714.

2^1606444 is an apocalyptic number.

1606444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1606444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1606444 is a wasteful number, since it uses less digits than its factorization.

1606444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57384 (or 57382 counting only the distinct ones).

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

The square root of 1606444 is about 1267.4557191476. The cubic root of 1606444 is about 117.1175189524.

The spelling of 1606444 in words is "one million, six hundred six thousand, four hundred forty-four".