16720214 has 32 divisors (see below), whose sum is σ = 30606336. Its totient is φ = 6687360.

The previous prime is 16720199. The next prime is 16720217. The reversal of 16720214 is 41202761.

It is a self number, because there is not a number n which added to its sum of digits gives 16720214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38579 + ... + 39009.

It is an arithmetic number, because the mean of its divisors is an integer number (956448).

Almost surely, 2^16720214 is an apocalyptic number.

16720214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16720214 is a deficient number, since it is larger than the sum of its proper divisors (13886122).

16720214 is a wasteful number, since it uses less digits than its factorization.

16720214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 16720214 is about 4089.0358276738. The cubic root of 16720214 is about 255.7097438635.

Adding to 16720214 its reverse (41202761), we get a palindrome (57922975).

The spelling of 16720214 in words is "sixteen million, seven hundred twenty thousand, two hundred fourteen".