214023306 has 64 divisors (see below), whose sum is σ = 509184000. Its totient is φ = 58677696.

The previous prime is 214023283. The next prime is 214023307. The reversal of 214023306 is 603320412.

It is a happy number.

It is a super-2 number, since 2×214023306² = 91611951022339272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (214023307) 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, 241941 + ... + 242823.

It is an arithmetic number, because the mean of its divisors is an integer number (7956000).

Almost surely, 2^214023306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214023306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254592000).

214023306 is an abundant number, since it is smaller than the sum of its proper divisors (295160694).

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

214023306 is a wasteful number, since it uses less digits than its factorization.

214023306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 214023306 is about 14629.5353993215. The cubic root of 214023306 is about 598.1641160575.

Adding to 214023306 its reverse (603320412), we get a palindrome (817343718).

The spelling of 214023306 in words is "two hundred fourteen million, twenty-three thousand, three hundred six".