420424131 has 8 divisors (see below), whose sum is σ = 560672080. Its totient is φ = 280229472.

The previous prime is 420424111. The next prime is 420424171. The reversal of 420424131 is 131424024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420424131 - 2¹³ = 420415939 is a prime.

It is a super-2 number, since 2×420424131² = 353512899854210322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420424098 and 420424107.

It is not an unprimeable number, because it can be changed into a prime (420424111) 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, 11925 + ... + 31353.

It is an arithmetic number, because the mean of its divisors is an integer number (70084010).

Almost surely, 2^420424131 is an apocalyptic number.

420424131 is a deficient number, since it is larger than the sum of its proper divisors (140247949).

420424131 is a wasteful number, since it uses less digits than its factorization.

420424131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26645.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 420424131 is about 20504.2466577048. The cubic root of 420424131 is about 749.1392382747.

Adding to 420424131 its reverse (131424024), we get a palindrome (551848155).

The spelling of 420424131 in words is "four hundred twenty million, four hundred twenty-four thousand, one hundred thirty-one".