1987190296 has 96 divisors (see below), whose sum is σ = 4782062880. Its totient is φ = 766886400.

The previous prime is 1987190279. The next prime is 1987190311. The reversal of 1987190296 is 6920917891.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204181 + ... + 213691.

It is an arithmetic number, because the mean of its divisors is an integer number (49813155).

Almost surely, 2^1987190296 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 1987190296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2391031440).

1987190296 is an abundant number, since it is smaller than the sum of its proper divisors (2794872584).

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

1987190296 is a wasteful number, since it uses less digits than its factorization.

1987190296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9585 (or 9574 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 52.

The square root of 1987190296 is about 44577.9126474087. The cubic root of 1987190296 is about 1257.2254173495.

The spelling of 1987190296 in words is "one billion, nine hundred eighty-seven million, one hundred ninety thousand, two hundred ninety-six".