1345243434 has 16 divisors (see below), whose sum is σ = 2832091680. Its totient is φ = 424813680.

The previous prime is 1345243429. The next prime is 1345243451. The reversal of 1345243434 is 4343425431.

It is a super-2 number, since 2×1345243434² = 3619359793440224712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1345243395 and 1345243404.

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 7 ways as a sum of consecutive naturals, for example, 5900077 + ... + 5900304.

It is an arithmetic number, because the mean of its divisors is an integer number (177005730).

Almost surely, 2^1345243434 is an apocalyptic number.

1345243434 is an abundant number, since it is smaller than the sum of its proper divisors (1486848246).

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

1345243434 is a wasteful number, since it uses less digits than its factorization.

1345243434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11800405.

The product of its digits is 69120, while the sum is 33.

The square root of 1345243434 is about 36677.5603605256. The cubic root of 1345243434 is about 1103.9098970126.

Adding to 1345243434 its reverse (4343425431), we get a palindrome (5688668865).

The spelling of 1345243434 in words is "one billion, three hundred forty-five million, two hundred forty-three thousand, four hundred thirty-four".