200421309 has 8 divisors (see below), whose sum is σ = 291521952. Its totient is φ = 121467440.

The previous prime is 200421307. The next prime is 200421311. The reversal of 200421309 is 903124002.

It is an interprime number because it is at equal distance from previous prime (200421307) and next prime (200421311).

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

It is a cyclic number.

It is not a de Polignac number, because 200421309 - 2¹ = 200421307 is a prime.

It is a super-2 number, since 2×200421309² = 80337402202546962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200421307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3036654 + ... + 3036719.

It is an arithmetic number, because the mean of its divisors is an integer number (36440244).

Almost surely, 2^200421309 is an apocalyptic number.

It is an amenable number.

200421309 is a deficient number, since it is larger than the sum of its proper divisors (91100643).

200421309 is a wasteful number, since it uses less digits than its factorization.

200421309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073387.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 200421309 is about 14157.0233100041. The cubic root of 200421309 is about 585.2138979666.

The spelling of 200421309 in words is "two hundred million, four hundred twenty-one thousand, three hundred nine".