20214100 has 36 divisors (see below), whose sum is σ = 46177600. Its totient is φ = 7659360.

The previous prime is 20214097. The next prime is 20214109. The reversal of 20214100 is 141202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3420 + ... + 7219.

Almost surely, 2^20214100 is an apocalyptic number.

20214100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20214100 is an abundant number, since it is smaller than the sum of its proper divisors (25963500).

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

20214100 is a wasteful number, since it uses less digits than its factorization.

20214100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672 (or 10665 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20214100 is about 4496.0093416273. The cubic root of 20214100 is about 272.4069204866.

Adding to 20214100 its reverse (141202), we get a palindrome (20355302).

The spelling of 20214100 in words is "twenty million, two hundred fourteen thousand, one hundred".