16229538 has 64 divisors (see below), whose sum is σ = 39580800. Its totient is φ = 4898880.

The previous prime is 16229519. The next prime is 16229557. The reversal of 16229538 is 83592261.

It is an interprime number because it is at equal distance from previous prime (16229519) and next prime (16229557).

It is a plaindrome in base 14.

It is an unprimeable number.

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, 42633 + ... + 43011.

It is an arithmetic number, because the mean of its divisors is an integer number (618450).

Almost surely, 2^16229538 is an apocalyptic number.

16229538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16229538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19790400).

16229538 is an abundant number, since it is smaller than the sum of its proper divisors (23351262).

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

16229538 is a wasteful number, since it uses less digits than its factorization.

16229538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 458 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 16229538 is about 4028.5900759447. The cubic root of 16229538 is about 253.1834921067.

The spelling of 16229538 in words is "sixteen million, two hundred twenty-nine thousand, five hundred thirty-eight".