420541539 has 16 divisors (see below), whose sum is σ = 620079744. Its totient is φ = 251380800.

The previous prime is 420541523. The next prime is 420541543. The reversal of 420541539 is 935145024.

It is not a de Polignac number, because 420541539 - 2⁴ = 420541523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (420541549) 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, 84877 + ... + 89694.

It is an arithmetic number, because the mean of its divisors is an integer number (38754984).

Almost surely, 2^420541539 is an apocalyptic number.

420541539 is a deficient number, since it is larger than the sum of its proper divisors (199538205).

420541539 is a wasteful number, since it uses less digits than its factorization.

420541539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174658.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 420541539 is about 20507.1094745213. The cubic root of 420541539 is about 749.2089668710.

The spelling of 420541539 in words is "four hundred twenty million, five hundred forty-one thousand, five hundred thirty-nine".