424000625 has 10 divisors (see below), whose sum is σ = 529831962. Its totient is φ = 339200000.

The previous prime is 424000613. The next prime is 424000627. The reversal of 424000625 is 526000424.

It can be written as a sum of positive squares in 5 ways, for example, as 108014449 + 315986176 = 10393^2 + 17776^2 .

It is a de Polignac number, because none of the positive numbers 2^k-424000625 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 424000625.

It is not an unprimeable number, because it can be changed into a prime (424000627) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 338576 + ... + 339825.

Almost surely, 2^424000625 is an apocalyptic number.

It is an amenable number.

424000625 is a deficient number, since it is larger than the sum of its proper divisors (105831337).

424000625 is an frugal number, since it uses more digits than its factorization.

424000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678421 (or 678406 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 424000625 is about 20591.2754583100. The cubic root of 424000625 is about 751.2575199759.

The spelling of 424000625 in words is "four hundred twenty-four million, six hundred twenty-five", and thus it is an aban number.