16287930 has 48 divisors (see below), whose sum is σ = 42690024. Its totient is φ = 4308480.

The previous prime is 16287923. The next prime is 16287941. The reversal of 16287930 is 3978261.

16287930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15848361 + 439569 = 3981^2 + 663^2 .

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, 11670 + ... + 12990.

Almost surely, 2^16287930 is an apocalyptic number.

16287930 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 16287930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21345012).

16287930 is an abundant number, since it is smaller than the sum of its proper divisors (26402094).

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

16287930 is a wasteful number, since it uses less digits than its factorization.

16287930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 16287930 is about 4035.8307694947. The cubic root of 16287930 is about 253.4867703143.

The spelling of 16287930 in words is "sixteen million, two hundred eighty-seven thousand, nine hundred thirty".