1549321044 has 48 divisors (see below), whose sum is σ = 3845011968. Its totient is φ = 483867648.

The previous prime is 1549321043. The next prime is 1549321057. The reversal of 1549321044 is 4401239451.

It is a junction number, because it is equal to n+sod(n) for n = 1549320996 and 1549321014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1549321043) 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, 28464 + ... + 62520.

It is an arithmetic number, because the mean of its divisors is an integer number (80104416).

Almost surely, 2^1549321044 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 1549321044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922505984).

1549321044 is an abundant number, since it is smaller than the sum of its proper divisors (2295690924).

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

1549321044 is a wasteful number, since it uses less digits than its factorization.

1549321044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34304 (or 34302 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1549321044 is about 39361.4156757604. The cubic root of 1549321044 is about 1157.1255236457.

The spelling of 1549321044 in words is "one billion, five hundred forty-nine million, three hundred twenty-one thousand, forty-four".