420559424 has 28 divisors (see below), whose sum is σ = 845989164. Its totient is φ = 207396864.

The previous prime is 420559417. The next prime is 420559453. The reversal of 420559424 is 424955024.

It can be written as a sum of positive squares in 2 ways, for example, as 315701824 + 104857600 = 17768^2 + 10240^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40337 + ... + 49680.

Almost surely, 2^420559424 is an apocalyptic number.

It is an amenable number.

420559424 is an abundant number, since it is smaller than the sum of its proper divisors (425429740).

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

420559424 is an equidigital number, since it uses as much as digits as its factorization.

420559424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90102 (or 90092 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 420559424 is about 20507.5455381672. The cubic root of 420559424 is about 749.2195876311.

The spelling of 420559424 in words is "four hundred twenty million, five hundred fifty-nine thousand, four hundred twenty-four".