1543480 has 32 divisors (see below), whose sum is σ = 3551040. Its totient is φ = 603520.

The previous prime is 1543463. The next prime is 1543489. The reversal of 1543480 is 843451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543489) by changing a digit.

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, 1470 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (110970).

2^1543480 is an apocalyptic number.

1543480 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 1543480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775520).

1543480 is an abundant number, since it is smaller than the sum of its proper divisors (2007560).

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

1543480 is a wasteful number, since it uses less digits than its factorization.

1543480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1543480 is about 1242.3687053367. The cubic root of 1543480 is about 115.5669545516.

The spelling of 1543480 in words is "one million, five hundred forty-three thousand, four hundred eighty".