1230630580 has 24 divisors (see below), whose sum is σ = 2647358280. Its totient is φ = 480245760.

The previous prime is 1230630547. The next prime is 1230630581. The reversal of 1230630580 is 850360321.

It can be written as a sum of positive squares in 4 ways, for example, as 207014544 + 1023616036 = 14388^2 + 31994^2 .

It is a super-3 number, since 3×1230630580³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230630581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749565 + ... + 751204.

It is an arithmetic number, because the mean of its divisors is an integer number (110306595).

Almost surely, 2^1230630580 is an apocalyptic number.

1230630580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230630580 is an abundant number, since it is smaller than the sum of its proper divisors (1416727700).

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

1230630580 is a wasteful number, since it uses less digits than its factorization.

1230630580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500819 (or 1500817 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1230630580 is about 35080.3446391280. The cubic root of 1230630580 is about 1071.6243358185.

The spelling of 1230630580 in words is "one billion, two hundred thirty million, six hundred thirty thousand, five hundred eighty".