1530040 has 32 divisors (see below), whose sum is σ = 3564000. Its totient is φ = 590464.

The previous prime is 1530037. The next prime is 1530071. The reversal of 1530040 is 400351.

It is a self number, because there is not a number n which added to its sum of digits gives 1530040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (111375).

2^1530040 is an apocalyptic number.

1530040 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 1530040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782000).

1530040 is an abundant number, since it is smaller than the sum of its proper divisors (2033960).

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

1530040 is a wasteful number, since it uses less digits than its factorization.

1530040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1530040 is about 1236.9478566213. The cubic root of 1530040 is about 115.2305394213.

Adding to 1530040 its reverse (400351), we get a palindrome (1930391).

The spelling of 1530040 in words is "one million, five hundred thirty thousand, forty".