1606542 has 32 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 442848.

The previous prime is 1606541. The next prime is 1606543. The reversal of 1606542 is 2456061.

It is an interprime number because it is at equal distance from previous prime (1606541) and next prime (1606543).

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2^1606542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1900800).

1606542 is an abundant number, since it is smaller than the sum of its proper divisors (2195058).

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

1606542 is a wasteful number, since it uses less digits than its factorization.

1606542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1606542 is about 1267.4943786858. The cubic root of 1606542 is about 117.1199004616.

The spelling of 1606542 in words is "one million, six hundred six thousand, five hundred forty-two".