1543872 has 112 divisors (see below), whose sum is σ = 4828032. Its totient is φ = 430080.

The previous prime is 1543859. The next prime is 1543879. The reversal of 1543872 is 2783451.

It is not an unprimeable number, because it can be changed into a prime (1543879) 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, 35883 + ... + 35925.

2^1543872 is an apocalyptic number.

1543872 is a gapful number since it is divisible by the number (12) 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 1543872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2414016).

1543872 is an abundant number, since it is smaller than the sum of its proper divisors (3284160).

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

1543872 is a wasteful number, since it uses less digits than its factorization.

1543872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 76 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 1543872 is about 1242.5264584708. The cubic root of 1543872 is about 115.5767372961.

It can be divided in two parts, 1543 and 872, that added together give a triangular number (2415 = T₆₉).

The spelling of 1543872 in words is "one million, five hundred forty-three thousand, eight hundred seventy-two".