200421324 has 48 divisors (see below), whose sum is σ = 536381440. Its totient is φ = 64650960.

The previous prime is 200421311. The next prime is 200421383. The reversal of 200421324 is 423124002.

It is a super-2 number, since 2×200421324² = 80337414227825952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200421297 and 200421306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26584 + ... + 33279.

Almost surely, 2^200421324 is an apocalyptic number.

It is an amenable number.

200421324 is an abundant number, since it is smaller than the sum of its proper divisors (335960116).

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

200421324 is a wasteful number, since it uses less digits than its factorization.

200421324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59907 (or 59899 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 200421324 is about 14157.0238397765. The cubic root of 200421324 is about 585.2139125662.

Adding to 200421324 its reverse (423124002), we get a palindrome (623545326).

The spelling of 200421324 in words is "two hundred million, four hundred twenty-one thousand, three hundred twenty-four".