1343145420 has 144 divisors (see below), whose sum is σ = 4214290080. Its totient is φ = 346042368.

The previous prime is 1343145407. The next prime is 1343145457. The reversal of 1343145420 is 245413431.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 749886 + ... + 751674.

Almost surely, 2^1343145420 is an apocalyptic number.

1343145420 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 1343145420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2107145040).

1343145420 is an abundant number, since it is smaller than the sum of its proper divisors (2871144660).

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

1343145420 is a wasteful number, since it uses less digits than its factorization.

1343145420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1343145420 is about 36648.9484160187. The cubic root of 1343145420 is about 1103.3357200250.

Adding to 1343145420 its reverse (245413431), we get a palindrome (1588558851).

The spelling of 1343145420 in words is "one billion, three hundred forty-three million, one hundred forty-five thousand, four hundred twenty".