1987230336 has 512 divisors, whose sum is σ = 7032614400. Its totient is φ = 483065856.

The previous prime is 1987230331. The next prime is 1987230379. The reversal of 1987230336 is 6330327891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1987230331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37494886 + ... + 37494938.

It is an arithmetic number, because the mean of its divisors is an integer number (13735575).

Almost surely, 2^1987230336 is an apocalyptic number.

1987230336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1987230336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3516307200).

1987230336 is an abundant number, since it is smaller than the sum of its proper divisors (5045384064).

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

1987230336 is a wasteful number, since it uses less digits than its factorization.

1987230336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 1987230336 is about 44578.3617464796. The cubic root of 1987230336 is about 1257.2338612594.

The spelling of 1987230336 in words is "one billion, nine hundred eighty-seven million, two hundred thirty thousand, three hundred thirty-six".