20142100 has 36 divisors (see below), whose sum is σ = 47684448. Its totient is φ = 7324000.

The previous prime is 20142091. The next prime is 20142131. The reversal of 20142100 is 124102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8056 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (1324568).

Almost surely, 2^20142100 is an apocalyptic number.

20142100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20142100 is an abundant number, since it is smaller than the sum of its proper divisors (27542348).

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

20142100 is a wasteful number, since it uses less digits than its factorization.

20142100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18336 (or 18329 counting only the distinct ones).

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

The square root of 20142100 is about 4487.9950980365. The cubic root of 20142100 is about 272.0831096955.

Adding to 20142100 its reverse (124102), we get a palindrome (20266202).

It can be divided in two parts, 2014 and 2100, that added together give a palindrome (4114).

The spelling of 20142100 in words is "twenty million, one hundred forty-two thousand, one hundred".