2231430630 has 128 divisors (see below), whose sum is σ = 6395590656. Its totient is φ = 491097600.

The previous prime is 2231430599. The next prime is 2231430631. The reversal of 2231430630 is 360341322.

It is a super-3 number, since 3×2231430630³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231430630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231430631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 257427 + ... + 265953.

It is an arithmetic number, because the mean of its divisors is an integer number (49965552).

Almost surely, 2^2231430630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231430630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3197795328).

2231430630 is an abundant number, since it is smaller than the sum of its proper divisors (4164160026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231430630 is a wasteful number, since it uses less digits than its factorization.

2231430630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8622.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 2231430630 is about 47238.0210212071. The cubic root of 2231430630 is about 1306.7558812848.

Adding to 2231430630 its reverse (360341322), we get a palindrome (2591771952).

The spelling of 2231430630 in words is "two billion, two hundred thirty-one million, four hundred thirty thousand, six hundred thirty".