1229060340 has 144 divisors (see below), whose sum is σ = 3839996160. Its totient is φ = 318040320.

The previous prime is 1229060333. The next prime is 1229060341. The reversal of 1229060340 is 430609221.

1229060340 is a `hidden beast` number, since 12 + 2 + 9 + 0 + 603 + 40 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229060341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1107706 + ... + 1108814.

It is an arithmetic number, because the mean of its divisors is an integer number (26666640).

Almost surely, 2^1229060340 is an apocalyptic number.

1229060340 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 1229060340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1919998080).

1229060340 is an abundant number, since it is smaller than the sum of its proper divisors (2610935820).

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

1229060340 is a wasteful number, since it uses less digits than its factorization.

1229060340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1229060340 is about 35057.9568714436. The cubic root of 1229060340 is about 1071.1683572268.

Adding to 1229060340 its reverse (430609221), we get a palindrome (1659669561).

The spelling of 1229060340 in words is "one billion, two hundred twenty-nine million, sixty thousand, three hundred forty".