1306343742 has 32 divisors (see below), whose sum is σ = 2974129920. Its totient is φ = 378649920.

The previous prime is 1306343729. The next prime is 1306343743. The reversal of 1306343742 is 2473436031.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306343743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428767 + ... + 431802.

It is an arithmetic number, because the mean of its divisors is an integer number (92941560).

Almost surely, 2^1306343742 is an apocalyptic number.

1306343742 is an abundant number, since it is smaller than the sum of its proper divisors (1667786178).

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

1306343742 is a wasteful number, since it uses less digits than its factorization.

1306343742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860608.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 1306343742 is about 36143.3775676817. The cubic root of 1306343742 is about 1093.1652634482.

Adding to 1306343742 its reverse (2473436031), we get a palindrome (3779779773).

The spelling of 1306343742 in words is "one billion, three hundred six million, three hundred forty-three thousand, seven hundred forty-two".