420838253 has 8 divisors (see below), whose sum is σ = 459711840. Its totient is φ = 382067280.

The previous prime is 420838217. The next prime is 420838261. The reversal of 420838253 is 352838024.

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 420838253 - 2¹⁸ = 420576109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420838753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16943 + ... + 33596.

It is an arithmetic number, because the mean of its divisors is an integer number (57463980).

Almost surely, 2^420838253 is an apocalyptic number.

It is an amenable number.

420838253 is a deficient number, since it is larger than the sum of its proper divisors (38873587).

420838253 is a wasteful number, since it uses less digits than its factorization.

420838253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51307.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 420838253 is about 20514.3426168132. The cubic root of 420838253 is about 749.3851274542.

The spelling of 420838253 in words is "four hundred twenty million, eight hundred thirty-eight thousand, two hundred fifty-three".