20473200 has 270 divisors, whose sum is σ = 79755312. Its totient is φ = 4857600.

The previous prime is 20473181. The next prime is 20473213. The reversal of 20473200 is 237402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 53 ways as a sum of consecutive naturals, for example, 435577 + ... + 435623.

Almost surely, 2^20473200 is an apocalyptic number.

20473200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20473200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39877656).

20473200 is an abundant number, since it is smaller than the sum of its proper divisors (59282112).

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

20473200 is a wasteful number, since it uses less digits than its factorization.

20473200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20473200 is about 4524.7320362647. The cubic root of 20473200 is about 273.5658672922.

The spelling of 20473200 in words is "twenty million, four hundred seventy-three thousand, two hundred".