1984485744 has 120 divisors (see below), whose sum is σ = 5806295040. Its totient is φ = 656123328.

The previous prime is 1984485721. The next prime is 1984485749. The reversal of 1984485744 is 4475844891.

1984485744 is a `hidden beast` number, since 1 + 98 + 4 + 485 + 74 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984485749) 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, 491767 + ... + 495785.

It is an arithmetic number, because the mean of its divisors is an integer number (48385792).

Almost surely, 2^1984485744 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 1984485744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903147520).

1984485744 is an abundant number, since it is smaller than the sum of its proper divisors (3821809296).

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

1984485744 is a wasteful number, since it uses less digits than its factorization.

1984485744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169 (or 4151 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The square root of 1984485744 is about 44547.5672063021. The cubic root of 1984485744 is about 1256.6548000890.

The spelling of 1984485744 in words is "one billion, nine hundred eighty-four million, four hundred eighty-five thousand, seven hundred forty-four".