1606356 has 18 divisors (see below), whose sum is σ = 4060602. Its totient is φ = 535440.

The previous prime is 1606349. The next prime is 1606379. The reversal of 1606356 is 6536061.

1606356 is a `hidden beast` number, since 1 + 606 + 3 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 3600 = 1266^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22275 + ... + 22346.

It is an arithmetic number, because the mean of its divisors is an integer number (225589).

2^1606356 is an apocalyptic number.

It is an amenable number.

1606356 is an abundant number, since it is smaller than the sum of its proper divisors (2454246).

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

1606356 is a wasteful number, since it uses less digits than its factorization.

1606356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44631 (or 44626 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1606356 is about 1267.4210034554. The cubic root of 1606356 is about 117.1153803719.

The spelling of 1606356 in words is "one million, six hundred six thousand, three hundred fifty-six".