420750343 has 6 divisors (see below), whose sum is σ = 455605584. Its totient is φ = 388384776.

The previous prime is 420750329. The next prime is 420750349. The reversal of 420750343 is 343057024.

It is not a de Polignac number, because 420750343 - 2²⁵ = 387195911 is a prime.

It is a super-2 number, since 2×420750343² = 354061702269235298, which contains 22 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 (420750349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1244655 + ... + 1244992.

It is an arithmetic number, because the mean of its divisors is an integer number (75934264).

Almost surely, 2^420750343 is an apocalyptic number.

420750343 is a deficient number, since it is larger than the sum of its proper divisors (34855241).

420750343 is a wasteful number, since it uses less digits than its factorization.

420750343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489673 (or 2489660 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 420750343 is about 20512.1998576457. The cubic root of 420750343 is about 749.3329434826.

The spelling of 420750343 in words is "four hundred twenty million, seven hundred fifty thousand, three hundred forty-three".