1343257140 has 48 divisors (see below), whose sum is σ = 3795644160. Its totient is φ = 354913920.

The previous prime is 1343257127. The next prime is 1343257141. The reversal of 1343257140 is 417523431.

It is a happy number.

1343257140 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1343257098 and 1343257107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343257141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96156 + ... + 109235.

It is an arithmetic number, because the mean of its divisors is an integer number (79075920).

Almost surely, 2^1343257140 is an apocalyptic number.

1343257140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343257140 is an abundant number, since it is smaller than the sum of its proper divisors (2452387020).

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

1343257140 is a wasteful number, since it uses less digits than its factorization.

1343257140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205512 (or 205510 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1343257140 is about 36650.4725753980. The cubic root of 1343257140 is about 1103.3663102220.

The spelling of 1343257140 in words is "one billion, three hundred forty-three million, two hundred fifty-seven thousand, one hundred forty".