1489952844 has 18 divisors (see below), whose sum is σ = 3766269780. Its totient is φ = 496650936.

The previous prime is 1489952819. The next prime is 1489952911. The reversal of 1489952844 is 4482599841.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20693754 + ... + 20693825.

It is an arithmetic number, because the mean of its divisors is an integer number (209237210).

Almost surely, 2^1489952844 is an apocalyptic number.

It is an amenable number.

1489952844 is an abundant number, since it is smaller than the sum of its proper divisors (2276316936).

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

1489952844 is a wasteful number, since it uses less digits than its factorization.

1489952844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41387589 (or 41387584 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 1489952844 is about 38599.9073055882. The cubic root of 1489952844 is about 1142.1527098589.

The spelling of 1489952844 in words is "one billion, four hundred eighty-nine million, nine hundred fifty-two thousand, eight hundred forty-four".