1340103220 has 24 divisors (see below), whose sum is σ = 2828806344. Its totient is φ = 533262336.

The previous prime is 1340103197. The next prime is 1340103223. The reversal of 1340103220 is 223010431.

It is a happy number.

1340103220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 368409636 + 971693584 = 19194^2 + 31172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1340103194 and 1340103203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340103223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169729 + ... + 177448.

It is an arithmetic number, because the mean of its divisors is an integer number (117866931).

Almost surely, 2^1340103220 is an apocalyptic number.

1340103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340103220 is an abundant number, since it is smaller than the sum of its proper divisors (1488703124).

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

1340103220 is a wasteful number, since it uses less digits than its factorization.

1340103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347379 (or 347377 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1340103220 is about 36607.4202860568. The cubic root of 1340103220 is about 1102.5020785196.

Adding to 1340103220 its reverse (223010431), we get a palindrome (1563113651).

The spelling of 1340103220 in words is "one billion, three hundred forty million, one hundred three thousand, two hundred twenty".