1549944 has 96 divisors (see below), whose sum is σ = 4867200. Its totient is φ = 440640.

The previous prime is 1549943. The next prime is 1549957. The reversal of 1549944 is 4499451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1549899 and 1549908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1549943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14997 + ... + 15099.

It is an arithmetic number, because the mean of its divisors is an integer number (50700).

2^1549944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1549944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2433600).

1549944 is an abundant number, since it is smaller than the sum of its proper divisors (3317256).

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

1549944 is a wasteful number, since it uses less digits than its factorization.

1549944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 138 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1549944 is about 1244.9674694545. The cubic root of 1549944 is about 115.7280589785.

It can be divided in two parts, 1 and 549944, that added together give a palindrome (549945).

The spelling of 1549944 in words is "one million, five hundred forty-nine thousand, nine hundred forty-four".