1228339562340 has 48 divisors (see below), whose sum is σ = 3752019028800. Its totient is φ = 297779287680.

The previous prime is 1228339562339. The next prime is 1228339562371. The reversal of 1228339562340 is 432659338221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1228339562340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930559615 + ... + 930560934.

It is an arithmetic number, because the mean of its divisors is an integer number (78167063100).

Almost surely, 2^{1228339562340} is an apocalyptic number.

1228339562340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1228339562340 is an abundant number, since it is smaller than the sum of its proper divisors (2523679466460).

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

1228339562340 is a wasteful number, since it uses less digits than its factorization.

1228339562340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861120572 (or 1861120570 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 1228339562340 in words is "one trillion, two hundred twenty-eight billion, three hundred thirty-nine million, five hundred sixty-two thousand, three hundred forty".