621030230 has 32 divisors (see below), whose sum is σ = 1185028704. Its totient is φ = 233519616.

The previous prime is 621030227. The next prime is 621030269. The reversal of 621030230 is 32030126.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 621030199 and 621030208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189284 + ... + 192536.

It is an arithmetic number, because the mean of its divisors is an integer number (37032147).

Almost surely, 2^621030230 is an apocalyptic number.

621030230 is a deficient number, since it is larger than the sum of its proper divisors (563998474).

621030230 is a wasteful number, since it uses less digits than its factorization.

621030230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 621030230 is about 24920.4781254293. The cubic root of 621030230 is about 853.1739375471.

Adding to 621030230 its reverse (32030126), we get a palindrome (653060356).

The spelling of 621030230 in words is "six hundred twenty-one million, thirty thousand, two hundred thirty".