1608540 has 96 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 377856.

The previous prime is 1608527. The next prime is 1608569. The reversal of 1608540 is 458061.

1608540 = T₂₃ + T₂₄ + ... + T₂₁₂.

It is a self number, because there is not a number n which added to its sum of digits gives 1608540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19339 + ... + 19421.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2^1608540 is an apocalyptic number.

1608540 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 1608540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).

1608540 is an abundant number, since it is smaller than the sum of its proper divisors (3471780).

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

1608540 is a wasteful number, since it uses less digits than its factorization.

1608540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1608540 is about 1268.2823029594. The cubic root of 1608540 is about 117.1684329868.

The spelling of 1608540 in words is "one million, six hundred eight thousand, five hundred forty".