420275329 has 8 divisors (see below), whose sum is σ = 424928192. Its totient is φ = 415633680.

The previous prime is 420275281. The next prime is 420275347. The reversal of 420275329 is 923572024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 420275329 - 2¹¹ = 420273281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420275294 and 420275303.

It is not an unprimeable number, because it can be changed into a prime (420275369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88639 + ... + 93259.

It is an arithmetic number, because the mean of its divisors is an integer number (53116024).

Almost surely, 2^420275329 is an apocalyptic number.

It is an amenable number.

420275329 is a deficient number, since it is larger than the sum of its proper divisors (4652863).

420275329 is a wasteful number, since it uses less digits than its factorization.

420275329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 420275329 is about 20500.6177711795. The cubic root of 420275329 is about 749.0508461308.

The spelling of 420275329 in words is "four hundred twenty million, two hundred seventy-five thousand, three hundred twenty-nine".