1987050240 has 432 divisors, whose sum is σ = 8062157376. Its totient is φ = 442368000.

The previous prime is 1987050239. The next prime is 1987050269. The reversal of 1987050240 is 420507891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1987050195 and 1987050204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3305940 + ... + 3306540.

Almost surely, 2^1987050240 is an apocalyptic number.

1987050240 is a gapful number since it is divisible by the number (10) 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 1987050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4031078688).

1987050240 is an abundant number, since it is smaller than the sum of its proper divisors (6075107136).

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

1987050240 is a wasteful number, since it uses less digits than its factorization.

1987050240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1987050240 is about 44576.3417072330. The cubic root of 1987050240 is about 1257.1958804869.

The spelling of 1987050240 in words is "one billion, nine hundred eighty-seven million, fifty thousand, two hundred forty".