20406200 has 24 divisors (see below), whose sum is σ = 47444880. Its totient is φ = 8162400.

The previous prime is 20406167. The next prime is 20406223. The reversal of 20406200 is 260402.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50816 + ... + 51215.

It is an arithmetic number, because the mean of its divisors is an integer number (1976870).

Almost surely, 2^20406200 is an apocalyptic number.

20406200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20406200 is an abundant number, since it is smaller than the sum of its proper divisors (27038680).

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

20406200 is a wasteful number, since it uses less digits than its factorization.

20406200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102047 (or 102038 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20406200 is about 4517.3222156494. The cubic root of 20406200 is about 273.2671199255.

Adding to 20406200 its reverse (260402), we get a palindrome (20666602).

The spelling of 20406200 in words is "twenty million, four hundred six thousand, two hundred".