20021414 has 16 divisors (see below), whose sum is σ = 34905600. Its totient is φ = 8434824.

The previous prime is 20021413. The next prime is 20021429. The reversal of 20021414 is 41412002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11294 + ... + 12945.

It is an arithmetic number, because the mean of its divisors is an integer number (2181600).

Almost surely, 2^20021414 is an apocalyptic number.

20021414 is a deficient number, since it is larger than the sum of its proper divisors (14884186).

20021414 is a wasteful number, since it uses less digits than its factorization.

20021414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24307.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20021414 is about 4474.5294724697. The cubic root of 20021414 is about 271.5386046692.

Adding to 20021414 its reverse (41412002), we get a palindrome (61433416).

The spelling of 20021414 in words is "twenty million, twenty-one thousand, four hundred fourteen".