23720214 has 24 divisors (see below), whose sum is σ = 55186488. Its totient is φ = 6777120.

The previous prime is 23720209. The next prime is 23720237. The reversal of 23720214 is 41202732.

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

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 40047 + ... + 40634.

It is an arithmetic number, because the mean of its divisors is an integer number (2299437).

Almost surely, 2^23720214 is an apocalyptic number.

23720214 is an abundant number, since it is smaller than the sum of its proper divisors (31466274).

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

23720214 is a wasteful number, since it uses less digits than its factorization.

23720214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80700 (or 80693 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23720214 is about 4870.3402345216. The cubic root of 23720214 is about 287.3246376078.

Adding to 23720214 its reverse (41202732), we get a palindrome (64922946).

The spelling of 23720214 in words is "twenty-three million, seven hundred twenty thousand, two hundred fourteen".