200440420 has 48 divisors (see below), whose sum is σ = 437584896. Its totient is φ = 77040000.

The previous prime is 200440411. The next prime is 200440447. The reversal of 200440420 is 24044002.

It is a junction number, because it is equal to n+sod(n) for n = 200440394 and 200440403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92550 + ... + 94690.

It is an arithmetic number, because the mean of its divisors is an integer number (9116352).

Almost surely, 2^200440420 is an apocalyptic number.

200440420 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 200440420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218792448).

200440420 is an abundant number, since it is smaller than the sum of its proper divisors (237144476).

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

200440420 is a wasteful number, since it uses less digits than its factorization.

200440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 200440420 is about 14157.6982592510. The cubic root of 200440420 is about 585.2324982299.

Adding to 200440420 its reverse (24044002), we get a palindrome (224484422).

It can be divided in two parts, 2004 and 40420, that added together give a palindrome (42424).

The spelling of 200440420 in words is "two hundred million, four hundred forty thousand, four hundred twenty".