424644425 has 12 divisors (see below), whose sum is σ = 527549196. Its totient is φ = 339076800.

The previous prime is 424644347. The next prime is 424644457. The reversal of 424644425 is 524446424.

424644425 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 22401289 + 402243136 = 4733^2 + 20056^2 .

It is not a de Polignac number, because 424644425 - 2²⁰ = 423595849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2174 + ... + 29223.

It is an arithmetic number, because the mean of its divisors is an integer number (43962433).

Almost surely, 2^424644425 is an apocalyptic number.

It is an amenable number.

424644425 is a deficient number, since it is larger than the sum of its proper divisors (102904771).

424644425 is a wasteful number, since it uses less digits than its factorization.

424644425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31948 (or 31943 counting only the distinct ones).

The product of its digits is 122880, while the sum is 35.

The square root of 424644425 is about 20606.9023630433. The cubic root of 424644425 is about 751.6375626565.

The spelling of 424644425 in words is "four hundred twenty-four million, six hundred forty-four thousand, four hundred twenty-five".