1008540 has 72 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 247680.

The previous prime is 1008517. The next prime is 1008541. The reversal of 1008540 is 458001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2125 + ... + 2555.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2^1008540 is an apocalyptic number.

1008540 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 1008540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651104).

1008540 is an abundant number, since it is smaller than the sum of its proper divisors (2293668).

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

1008540 is a wasteful number, since it uses less digits than its factorization.

1008540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1008540 is about 1004.2609222707. The cubic root of 1008540 is about 100.2838601385.

The spelling of 1008540 in words is "one million, eight thousand, five hundred forty".