20290214 has 48 divisors (see below), whose sum is σ = 39521520. Its totient is φ = 7741440.

The previous prime is 20290211. The next prime is 20290217. The reversal of 20290214 is 41209202.

It is an interprime number because it is at equal distance from previous prime (20290211) and next prime (20290217).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20290211) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31334 + ... + 31974.

It is an arithmetic number, because the mean of its divisors is an integer number (823365).

Almost surely, 2^20290214 is an apocalyptic number.

20290214 is a deficient number, since it is larger than the sum of its proper divisors (19231306).

20290214 is a wasteful number, since it uses less digits than its factorization.

20290214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20290214 is about 4504.4660060877. The cubic root of 20290214 is about 272.7483984780.

Adding to 20290214 its reverse (41209202), we get a palindrome (61499416).

The spelling of 20290214 in words is "twenty million, two hundred ninety thousand, two hundred fourteen".