1987237230 has 64 divisors (see below), whose sum is σ = 5217004800. Its totient is φ = 480453120.

The previous prime is 1987237201. The next prime is 1987237243. The reversal of 1987237230 is 327327891.

It is a super-2 number, since 2×1987237230² = 7898223616596145800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117126 + ... + 133014.

It is an arithmetic number, because the mean of its divisors is an integer number (81515700).

Almost surely, 2^1987237230 is an apocalyptic number.

1987237230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1987237230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608502400).

1987237230 is an abundant number, since it is smaller than the sum of its proper divisors (3229767570).

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

1987237230 is a wasteful number, since it uses less digits than its factorization.

1987237230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16289.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 1987237230 is about 44578.4390709231. The cubic root of 1987237230 is about 1257.2353151020.

The spelling of 1987237230 in words is "one billion, nine hundred eighty-seven million, two hundred thirty-seven thousand, two hundred thirty".