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BaseRepresentation
bin10011001111010011001
31012000210002
42121322121
5130133200
621302345
75233655
oct2317231
91160702
10630425
113a0714
122649b5
13190c43
14125a65
15c6bd5
hex99e99

630425 has 12 divisors (see below), whose sum is σ = 791616. Its totient is φ = 498000.

The previous prime is 630391. The next prime is 630433. The reversal of 630425 is 524036.

630425 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 630425 - 28 = 630169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 630397 and 630406.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3692 + ... + 3858.

It is an arithmetic number, because the mean of its divisors is an integer number (65968).

2630425 is an apocalyptic number.

It is an amenable number.

630425 is a deficient number, since it is larger than the sum of its proper divisors (161191).

630425 is a wasteful number, since it uses less digits than its factorization.

630425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 630425 is about 793.9930730176. The cubic root of 630425 is about 85.7454615430.

The spelling of 630425 in words is "six hundred thirty thousand, four hundred twenty-five".