1543422 has 16 divisors (see below), whose sum is σ = 3138192. Its totient is φ = 505920.

The previous prime is 1543417. The next prime is 1543429. The reversal of 1543422 is 2243451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (196137).

2^1543422 is an apocalyptic number.

1543422 is an abundant number, since it is smaller than the sum of its proper divisors (1594770).

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

1543422 is a wasteful number, since it uses less digits than its factorization.

1543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283.

The product of its digits is 960, while the sum is 21.

The square root of 1543422 is about 1242.3453626106. The cubic root of 1543422 is about 115.5655069640.

Adding to 1543422 its reverse (2243451), we get a palindrome (3786873).

The spelling of 1543422 in words is "one million, five hundred forty-three thousand, four hundred twenty-two".