20247214 has 24 divisors (see below), whose sum is σ = 33796440. Its totient is φ = 9086688.

The previous prime is 20247211. The next prime is 20247239. The reversal of 20247214 is 41274202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11697 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (1408185).

Almost surely, 2^20247214 is an apocalyptic number.

20247214 is a deficient number, since it is larger than the sum of its proper divisors (13549226).

20247214 is a wasteful number, since it uses less digits than its factorization.

20247214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 20247214 is about 4499.6904337965. The cubic root of 20247214 is about 272.5555883565. Note that the first 4 decimals are identical.

The spelling of 20247214 in words is "twenty million, two hundred forty-seven thousand, two hundred fourteen".