16238730 has 64 divisors (see below), whose sum is σ = 42393600. Its totient is φ = 3965760.

The previous prime is 16238707. The next prime is 16238731. The reversal of 16238730 is 3783261.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (16238731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17211 + ... + 18129.

It is an arithmetic number, because the mean of its divisors is an integer number (662400).

Almost surely, 2^16238730 is an apocalyptic number.

16238730 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 16238730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21196800).

16238730 is an abundant number, since it is smaller than the sum of its proper divisors (26154870).

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

16238730 is a wasteful number, since it uses less digits than its factorization.

16238730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 16238730 is about 4029.7307602370. The cubic root of 16238730 is about 253.2312819952.

The spelling of 16238730 in words is "sixteen million, two hundred thirty-eight thousand, seven hundred thirty".