1606380 has 48 divisors (see below), whose sum is σ = 4614624. Its totient is φ = 417280.

The previous prime is 1606379. The next prime is 1606387. The reversal of 1606380 is 836061.

It is a self number, because there is not a number n which added to its sum of digits gives 1606380.

It is not an unprimeable number, because it can be changed into a prime (1606387) 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, 2134 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (96138).

2^1606380 is an apocalyptic number.

1606380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307312).

1606380 is an abundant number, since it is smaller than the sum of its proper divisors (3008244).

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

1606380 is a wasteful number, since it uses less digits than its factorization.

1606380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1606380 is about 1267.4304714658. The cubic root of 1606380 is about 117.1159636288.

The spelling of 1606380 in words is "one million, six hundred six thousand, three hundred eighty".