420266143 has 16 divisors (see below), whose sum is σ = 485565696. Its totient is φ = 359979840.

The previous prime is 420266137. The next prime is 420266153. The reversal of 420266143 is 341662024.

It is not a de Polignac number, because 420266143 - 2⁹ = 420265631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420266123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4555 + ... + 29347.

It is an arithmetic number, because the mean of its divisors is an integer number (30347856).

Almost surely, 2^420266143 is an apocalyptic number.

420266143 is a deficient number, since it is larger than the sum of its proper divisors (65299553).

420266143 is a wasteful number, since it uses less digits than its factorization.

420266143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24894.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 420266143 is about 20500.3937279263. The cubic root of 420266143 is about 749.0453887312.

The spelling of 420266143 in words is "four hundred twenty million, two hundred sixty-six thousand, one hundred forty-three".