1721414214 has 64 divisors (see below), whose sum is σ = 4124897280. Its totient is φ = 528988320.

The previous prime is 1721414213. The next prime is 1721414243. The reversal of 1721414214 is 4124141271.

It is a happy number.

1721414214 is a `hidden beast` number, since 17 + 21 + 414 + 214 = 666.

It is a super-3 number, since 3×1721414214³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1721414213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1031809 + ... + 1033475.

It is an arithmetic number, because the mean of its divisors is an integer number (64451520).

Almost surely, 2^1721414214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1721414214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062448640).

1721414214 is an abundant number, since it is smaller than the sum of its proper divisors (2403483066).

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

1721414214 is a wasteful number, since it uses less digits than its factorization.

1721414214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162 (or 3156 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1721414214 is about 41489.9290671845. The cubic root of 1721414214 is about 1198.4735716704.

Adding to 1721414214 its reverse (4124141271), we get a palindrome (5845555485).

The spelling of 1721414214 in words is "one billion, seven hundred twenty-one million, four hundred fourteen thousand, two hundred fourteen".