1345040346 has 64 divisors (see below), whose sum is σ = 2958359040. Its totient is φ = 405155520.

The previous prime is 1345040339. The next prime is 1345040351. The reversal of 1345040346 is 6430405431.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1522821 + ... + 1523703.

It is an arithmetic number, because the mean of its divisors is an integer number (46224360).

Almost surely, 2^1345040346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345040346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479179520).

1345040346 is an abundant number, since it is smaller than the sum of its proper divisors (1613318694).

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

1345040346 is a wasteful number, since it uses less digits than its factorization.

1345040346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1345040346 is about 36674.7916967500. The cubic root of 1345040346 is about 1103.8543427216.

Adding to 1345040346 its reverse (6430405431), we get a palindrome (7775445777).

The spelling of 1345040346 in words is "one billion, three hundred forty-five million, forty thousand, three hundred forty-six".