220073420 has 24 divisors (see below), whose sum is σ = 528176544. Its totient is φ = 75453696.

The previous prime is 220073387. The next prime is 220073423. The reversal of 220073420 is 24370022.

It is a happy number.

220073420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220073392 and 220073401.

It is not an unprimeable number, because it can be changed into a prime (220073423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785837 + ... + 786116.

It is an arithmetic number, because the mean of its divisors is an integer number (22007356).

Almost surely, 2^220073420 is an apocalyptic number.

220073420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220073420 is an abundant number, since it is smaller than the sum of its proper divisors (308103124).

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

220073420 is a wasteful number, since it uses less digits than its factorization.

220073420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571969 (or 1571967 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 220073420 is about 14834.8717554282. The cubic root of 220073420 is about 603.7482211568.

The spelling of 220073420 in words is "two hundred twenty million, seventy-three thousand, four hundred twenty".