1230386220 has 384 divisors, whose sum is σ = 4755179520. Its totient is φ = 257679360.

The previous prime is 1230386167. The next prime is 1230386233. The reversal of 1230386220 is 226830321.

1230386220 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 38 + 622 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2634427 + ... + 2634893.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2^1230386220 is an apocalyptic number.

1230386220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230386220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2377589760).

1230386220 is an abundant number, since it is smaller than the sum of its proper divisors (3524793300).

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

1230386220 is a wasteful number, since it uses less digits than its factorization.

1230386220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1230386220 is about 35076.8616041971. The cubic root of 1230386220 is about 1071.5534021413.

The spelling of 1230386220 in words is "one billion, two hundred thirty million, three hundred eighty-six thousand, two hundred twenty".