1230435220 has 24 divisors (see below), whose sum is σ = 2953044864. Its totient is φ = 421863456.

The previous prime is 1230435169. The next prime is 1230435233. The reversal of 1230435220 is 225340321.

It is a junction number, because it is equal to n+sod(n) for n = 1230435191 and 1230435200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4394272 + ... + 4394551.

It is an arithmetic number, because the mean of its divisors is an integer number (123043536).

Almost surely, 2^1230435220 is an apocalyptic number.

1230435220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230435220 is an abundant number, since it is smaller than the sum of its proper divisors (1722609644).

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

1230435220 is a wasteful number, since it uses less digits than its factorization.

1230435220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788839 (or 8788837 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1230435220 is about 35077.5600633796. The cubic root of 1230435220 is about 1071.5676267858.

Adding to 1230435220 its reverse (225340321), we get a palindrome (1455775541).

It can be divided in two parts, 12304 and 35220, that added together give a square (47524 = 218²).

The spelling of 1230435220 in words is "one billion, two hundred thirty million, four hundred thirty-five thousand, two hundred twenty".