630351385 has 16 divisors (see below), whose sum is σ = 771192576. Its totient is φ = 494524288.

The previous prime is 630351383. The next prime is 630351401. The reversal of 630351385 is 583153036.

It is a cyclic number.

It is not a de Polignac number, because 630351385 - 2¹ = 630351383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630351385.

It is not an unprimeable number, because it can be changed into a prime (630351383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51312 + ... + 62398.

It is an arithmetic number, because the mean of its divisors is an integer number (48199536).

Almost surely, 2^630351385 is an apocalyptic number.

It is an amenable number.

630351385 is a deficient number, since it is larger than the sum of its proper divisors (140841191).

630351385 is a wasteful number, since it uses less digits than its factorization.

630351385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 630351385 is about 25106.7995770070. The cubic root of 630351385 is about 857.4212390155.

The spelling of 630351385 in words is "six hundred thirty million, three hundred fifty-one thousand, three hundred eighty-five".