1987969230 has 80 divisors (see below), whose sum is σ = 5756645664. Its totient is φ = 489343680.

The previous prime is 1987969223. The next prime is 1987969231. The reversal of 1987969230 is 329697891.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987969231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 83866 + ... + 104925.

Almost surely, 2^1987969230 is an apocalyptic number.

1987969230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1987969230 is an abundant number, since it is smaller than the sum of its proper divisors (3768676434).

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

1987969230 is a wasteful number, since it uses less digits than its factorization.

1987969230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188823 (or 188814 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1987969230 is about 44586.6485620976. The cubic root of 1987969230 is about 1257.3896639408.

The spelling of 1987969230 in words is "one billion, nine hundred eighty-seven million, nine hundred sixty-nine thousand, two hundred thirty".