421924343 has 8 divisors (see below), whose sum is σ = 449744400. Its totient is φ = 394437760.

The previous prime is 421924339. The next prime is 421924379. The reversal of 421924343 is 343429124.

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 421924343 - 2² = 421924339 is a prime.

It is a super-3 number, since 3×421924343³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421924333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80753 + ... + 85818.

It is an arithmetic number, because the mean of its divisors is an integer number (56218050).

Almost surely, 2^421924343 is an apocalyptic number.

421924343 is a deficient number, since it is larger than the sum of its proper divisors (27820057).

421924343 is a wasteful number, since it uses less digits than its factorization.

421924343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166737.

The product of its digits is 20736, while the sum is 32.

The square root of 421924343 is about 20540.7970390635. The cubic root of 421924343 is about 750.0292391564.

The spelling of 421924343 in words is "four hundred twenty-one million, nine hundred twenty-four thousand, three hundred forty-three".