420053420 has 12 divisors (see below), whose sum is σ = 882112224. Its totient is φ = 168021360.

The previous prime is 420053411. The next prime is 420053423. The reversal of 420053420 is 24350024.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 21002671 = 420053420 / (4 + 2 + 0 + 0 + 5 + 3 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 420053392 and 420053401.

It is not an unprimeable number, because it can be changed into a prime (420053423) 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 3 ways as a sum of consecutive naturals, for example, 10501316 + ... + 10501355.

It is an arithmetic number, because the mean of its divisors is an integer number (73509352).

Almost surely, 2^420053420 is an apocalyptic number.

It is an amenable number.

420053420 is an abundant number, since it is smaller than the sum of its proper divisors (462058804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420053420 is a wasteful number, since it uses less digits than its factorization.

420053420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21002680 (or 21002678 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 420053420 is about 20495.2048050270. The cubic root of 420053420 is about 748.9189878173.

The spelling of 420053420 in words is "four hundred twenty million, fifty-three thousand, four hundred twenty".