630259285 has 16 divisors (see below), whose sum is σ = 776260800. Its totient is φ = 491078016.

The previous prime is 630259283. The next prime is 630259303. The reversal of 630259285 is 582952036.

It is a cyclic number.

It is not a de Polignac number, because 630259285 - 2¹ = 630259283 is a prime.

It is a super-2 number, since 2×630259285² = 794453532657422450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630259283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19246 + ... + 40384.

It is an arithmetic number, because the mean of its divisors is an integer number (48516300).

Almost surely, 2^630259285 is an apocalyptic number.

It is an amenable number.

630259285 is a deficient number, since it is larger than the sum of its proper divisors (146001515).

630259285 is a wasteful number, since it uses less digits than its factorization.

630259285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21300.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 630259285 is about 25104.9653455248. The cubic root of 630259285 is about 857.3794779997.

The spelling of 630259285 in words is "six hundred thirty million, two hundred fifty-nine thousand, two hundred eighty-five".