1987282944 has 192 divisors, whose sum is σ = 5971492800. Its totient is φ = 652935168.

The previous prime is 1987282943. The next prime is 1987282951. The reversal of 1987282944 is 4492827891.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is not an unprimeable number, because it can be changed into a prime (1987282943) 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, 4589352 + ... + 4589784.

It is an arithmetic number, because the mean of its divisors is an integer number (31101525).

Almost surely, 2^1987282944 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 1987282944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2985746400).

1987282944 is an abundant number, since it is smaller than the sum of its proper divisors (3984209856).

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

1987282944 is an equidigital number, since it uses as much as digits as its factorization.

1987282944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 521 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 1987282944 is about 44578.9518046353. The cubic root of 1987282944 is about 1257.2449554230.

The spelling of 1987282944 in words is "one billion, nine hundred eighty-seven million, two hundred eighty-two thousand, nine hundred forty-four".