16229730 has 96 divisors (see below), whose sum is σ = 45505152. Its totient is φ = 3688960.

The previous prime is 16229729. The next prime is 16229753. The reversal of 16229730 is 3792261.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61579 + ... + 61841.

It is an arithmetic number, because the mean of its divisors is an integer number (474012).

Almost surely, 2^16229730 is an apocalyptic number.

16229730 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 16229730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22752576).

16229730 is an abundant number, since it is smaller than the sum of its proper divisors (29275422).

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

16229730 is a wasteful number, since it uses less digits than its factorization.

16229730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 16229730 is about 4028.6139055511. The cubic root of 16229730 is about 253.1844905135.

It can be divided in two parts, 162 and 29730, that added together give a palindrome (29892).

The spelling of 16229730 in words is "sixteen million, two hundred twenty-nine thousand, seven hundred thirty".