630326455 has 16 divisors (see below), whose sum is σ = 853610400. Its totient is φ = 442610560.

The previous prime is 630326453. The next prime is 630326461. The reversal of 630326455 is 554623036.

It is not a de Polignac number, because 630326455 - 2¹ = 630326453 is a prime.

It is a super-2 number, since 2×630326455² = 794622879745734050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 630326455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630326453) 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, 196000 + ... + 199189.

It is an arithmetic number, because the mean of its divisors is an integer number (53350650).

Almost surely, 2^630326455 is an apocalyptic number.

630326455 is a deficient number, since it is larger than the sum of its proper divisors (223283945).

630326455 is a wasteful number, since it uses less digits than its factorization.

630326455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395234.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 630326455 is about 25106.3030930482. The cubic root of 630326455 is about 857.4099353766.

The spelling of 630326455 in words is "six hundred thirty million, three hundred twenty-six thousand, four hundred fifty-five".