630045 has 32 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 309312.

The previous prime is 630043. The next prime is 630067. The reversal of 630045 is 540036.

It is a happy number.

It is not a de Polignac number, because 630045 - 2¹ = 630043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630043) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1576 + ... + 1934.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2⁶³⁰⁰⁴⁵ is an apocalyptic number.

630045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

630045 is a deficient number, since it is larger than the sum of its proper divisors (579555).

630045 is a wasteful number, since it uses less digits than its factorization.

630045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 630045 is about 793.7537401487. The cubic root of 630045 is about 85.7282298743.

Subtracting from 630045 its reverse (540036), we obtain a palindrome (90009).

The spelling of 630045 in words is "six hundred thirty thousand, forty-five".