421050243 has 16 divisors (see below), whose sum is σ = 575963136. Its totient is φ = 273505440.

The previous prime is 421050239. The next prime is 421050263. The reversal of 421050243 is 342050124.

It is not a de Polignac number, because 421050243 - 2² = 421050239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421050263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8830 + ... + 30332.

It is an arithmetic number, because the mean of its divisors is an integer number (35997696).

Almost surely, 2^421050243 is an apocalyptic number.

421050243 is a deficient number, since it is larger than the sum of its proper divisors (154912893).

421050243 is a wasteful number, since it uses less digits than its factorization.

421050243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21674.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 421050243 is about 20519.5088391511. The cubic root of 421050243 is about 749.5109362693.

The spelling of 421050243 in words is "four hundred twenty-one million, fifty thousand, two hundred forty-three".