420024253 has 16 divisors (see below), whose sum is σ = 485847936. Its totient is φ = 358871040.

The previous prime is 420024251. The next prime is 420024257. The reversal of 420024253 is 352420024.

It is not a de Polignac number, because 420024253 - 2¹ = 420024251 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 (420024251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197725 + ... + 199837.

It is an arithmetic number, because the mean of its divisors is an integer number (30365496).

Almost surely, 2^420024253 is an apocalyptic number.

It is an amenable number.

420024253 is a deficient number, since it is larger than the sum of its proper divisors (65823683).

420024253 is a wasteful number, since it uses less digits than its factorization.

420024253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 420024253 is about 20494.4932359890. The cubic root of 420024253 is about 748.9016533350.

Adding to 420024253 its reverse (352420024), we get a palindrome (772444277).

The spelling of 420024253 in words is "four hundred twenty million, twenty-four thousand, two hundred fifty-three".