200032421 has 8 divisors (see below), whose sum is σ = 212877720. Its totient is φ = 187307008.

The previous prime is 200032409. The next prime is 200032447. The reversal of 200032421 is 124230002.

It can be written as a sum of positive squares in 4 ways, for example, as 109516225 + 90516196 = 10465^2 + 9514^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200032421 is a prime.

It is a super-2 number, since 2×200032421² = 80025938902242482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200032396 and 200032405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200032451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26516 + ... + 33213.

It is an arithmetic number, because the mean of its divisors is an integer number (26609715).

Almost surely, 2^200032421 is an apocalyptic number.

It is an amenable number.

200032421 is a deficient number, since it is larger than the sum of its proper divisors (12845299).

200032421 is a wasteful number, since it uses less digits than its factorization.

200032421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59943.

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

The square root of 200032421 is about 14143.2818327289. The cubic root of 200032421 is about 584.8351457949.

Adding to 200032421 its reverse (124230002), we get a palindrome (324262423).

The spelling of 200032421 in words is "two hundred million, thirty-two thousand, four hundred twenty-one".