1606442 has 8 divisors (see below), whose sum is σ = 2432100. Its totient is φ = 795744.

The previous prime is 1606439. The next prime is 1606457. The reversal of 1606442 is 2446061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1413721 + 192721 = 1189^2 + 439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3467 + ... + 3902.

2^1606442 is an apocalyptic number.

1606442 is a deficient number, since it is larger than the sum of its proper divisors (825658).

1606442 is a wasteful number, since it uses less digits than its factorization.

1606442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1606442 is about 1267.4549301652. The cubic root of 1606442 is about 117.1174703492.

It can be divided in two parts, 1606 and 442, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1606442 in words is "one million, six hundred six thousand, four hundred forty-two".