200431220 has 48 divisors (see below), whose sum is σ = 471598848. Its totient is φ = 70911360.

The previous prime is 200431211. The next prime is 200431261. The reversal of 200431220 is 22134002.

It is a junction number, because it is equal to n+sod(n) for n = 200431195 and 200431204.

It is a congruent number.

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, 4172 + ... + 20451.

It is an arithmetic number, because the mean of its divisors is an integer number (9824976).

Almost surely, 2^200431220 is an apocalyptic number.

200431220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200431220 is an abundant number, since it is smaller than the sum of its proper divisors (271167628).

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

200431220 is a wasteful number, since it uses less digits than its factorization.

200431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24680 (or 24678 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 200431220 is about 14157.3733439505. The cubic root of 200431220 is about 585.2235442452.

Adding to 200431220 its reverse (22134002), we get a palindrome (222565222).

The spelling of 200431220 in words is "two hundred million, four hundred thirty-one thousand, two hundred twenty".