630230223 has 16 divisors (see below), whose sum is σ = 976096256. Its totient is φ = 354227040.

The previous prime is 630230197. The next prime is 630230257. The reversal of 630230223 is 322032036.

It is not a de Polignac number, because 630230223 - 2¹³ = 630222031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 630230223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630230023) 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, 244711 + ... + 247272.

It is an arithmetic number, because the mean of its divisors is an integer number (61006016).

Almost surely, 2^630230223 is an apocalyptic number.

630230223 is a deficient number, since it is larger than the sum of its proper divisors (345866033).

630230223 is a wasteful number, since it uses less digits than its factorization.

630230223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492054.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 630230223 is about 25104.3865290511. The cubic root of 630230223 is about 857.3662995370.

Adding to 630230223 its reverse (322032036), we get a palindrome (952262259).

The spelling of 630230223 in words is "six hundred thirty million, two hundred thirty thousand, two hundred twenty-three".