420006353 has 4 divisors (see below), whose sum is σ = 452314548. Its totient is φ = 387698160.

The previous prime is 420006347. The next prime is 420006373. The reversal of 420006353 is 353600024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43335889 + 376670464 = 6583^2 + 19408^2 .

It is a cyclic number.

It is not a de Polignac number, because 420006353 - 2¹⁸ = 419744209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420006313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16154078 + ... + 16154103.

It is an arithmetic number, because the mean of its divisors is an integer number (113078637).

Almost surely, 2^420006353 is an apocalyptic number.

It is an amenable number.

420006353 is a deficient number, since it is larger than the sum of its proper divisors (32308195).

420006353 is a wasteful number, since it uses less digits than its factorization.

420006353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32308194.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 420006353 is about 20494.0565286622. The cubic root of 420006353 is about 748.8910146398.

Adding to 420006353 its reverse (353600024), we get a palindrome (773606377).

The spelling of 420006353 in words is "four hundred twenty million, six thousand, three hundred fifty-three".