200444420 has 24 divisors (see below), whose sum is σ = 459200448. Its totient is φ = 72888800.

The previous prime is 200444359. The next prime is 200444437. The reversal of 200444420 is 24444002.

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 = 200444392 and 200444401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455336 + ... + 455775.

It is an arithmetic number, because the mean of its divisors is an integer number (19133352).

Almost surely, 2^200444420 is an apocalyptic number.

200444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200444420 is an abundant number, since it is smaller than the sum of its proper divisors (258756028).

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

200444420 is a wasteful number, since it uses less digits than its factorization.

200444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911131 (or 911129 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 200444420 is about 14157.8395244472. The cubic root of 200444420 is about 585.2363911812.

Adding to 200444420 its reverse (24444002), we get a palindrome (224888422).

The spelling of 200444420 in words is "two hundred million, four hundred forty-four thousand, four hundred twenty".