420271343 has 4 divisors (see below), whose sum is σ = 421833960. Its totient is φ = 418708728.

The previous prime is 420271339. The next prime is 420271349. The reversal of 420271343 is 343172024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420271343 - 2² = 420271339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420271349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780905 + ... + 781442.

It is an arithmetic number, because the mean of its divisors is an integer number (105458490).

Almost surely, 2^420271343 is an apocalyptic number.

420271343 is a deficient number, since it is larger than the sum of its proper divisors (1562617).

420271343 is a wasteful number, since it uses less digits than its factorization.

420271343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562616.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 420271343 is about 20500.5205543664. The cubic root of 420271343 is about 749.0484780593.

The spelling of 420271343 in words is "four hundred twenty million, two hundred seventy-one thousand, three hundred forty-three".