1544022 has 32 divisors (see below), whose sum is σ = 3483360. Its totient is φ = 513216.

The previous prime is 1544021. The next prime is 1544027. The reversal of 1544022 is 2204451.

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

It is a junction number, because it is equal to n+sod(n) for n = 1543986 and 1544004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1544021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4198 + ... + 4550.

It is an arithmetic number, because the mean of its divisors is an integer number (108855).

2^1544022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1544022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741680).

1544022 is an abundant number, since it is smaller than the sum of its proper divisors (1939338).

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

1544022 is an frugal number, since it uses more digits than its factorization.

1544022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1544022 is about 1242.5868178924. The cubic root of 1544022 is about 115.5804802552.

Adding to 1544022 its reverse (2204451), we get a palindrome (3748473).

The spelling of 1544022 in words is "one million, five hundred forty-four thousand, twenty-two".