20473222 has 32 divisors (see below), whose sum is σ = 40308480. Its totient is φ = 7555680.

The previous prime is 20473213. The next prime is 20473223. The reversal of 20473222 is 22237402.

It is a super-2 number, since 2×20473222² = 838305638122568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20473193 and 20473202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473223) 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 15 ways as a sum of consecutive naturals, for example, 573 + ... + 6424.

It is an arithmetic number, because the mean of its divisors is an integer number (1259640).

Almost surely, 2^20473222 is an apocalyptic number.

20473222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20473222 is a deficient number, since it is larger than the sum of its proper divisors (19835258).

20473222 is a wasteful number, since it uses less digits than its factorization.

20473222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20473222 is about 4524.7344673472. The cubic root of 20473222 is about 273.5659652812.

The spelling of 20473222 in words is "twenty million, four hundred seventy-three thousand, two hundred twenty-two".