21732314 has 8 divisors (see below), whose sum is σ = 34314240. Its totient is φ = 10294236.

The previous prime is 21732253. The next prime is 21732317. The reversal of 21732314 is 41323712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21732314.

It is not an unprimeable number, because it can be changed into a prime (21732317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285914 + ... + 285989.

It is an arithmetic number, because the mean of its divisors is an integer number (4289280).

Almost surely, 2^21732314 is an apocalyptic number.

21732314 is a deficient number, since it is larger than the sum of its proper divisors (12581926).

21732314 is a wasteful number, since it uses less digits than its factorization.

21732314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571924.

The product of its digits is 1008, while the sum is 23.

The square root of 21732314 is about 4661.7930026976. The cubic root of 21732314 is about 279.0628276266.

The spelling of 21732314 in words is "twenty-one million, seven hundred thirty-two thousand, three hundred fourteen".