1343949249 has 16 divisors (see below), whose sum is σ = 1921838400. Its totient is φ = 832792896.

The previous prime is 1343949241. The next prime is 1343949283. The reversal of 1343949249 is 9429493431.

It is not a de Polignac number, because 1343949249 - 2³ = 1343949241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1343949198 and 1343949207.

It is not an unprimeable number, because it can be changed into a prime (1343949241) 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, 219414 + ... + 225455.

It is an arithmetic number, because the mean of its divisors is an integer number (120114900).

Almost surely, 2^1343949249 is an apocalyptic number.

1343949249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1343949249 is a deficient number, since it is larger than the sum of its proper divisors (577889151).

1343949249 is a wasteful number, since it uses less digits than its factorization.

1343949249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444944.

The product of its digits is 839808, while the sum is 48.

The square root of 1343949249 is about 36659.9133796031. The cubic root of 1343949249 is about 1103.5557796870. Note that the first 3 decimals are identical.

The spelling of 1343949249 in words is "one billion, three hundred forty-three million, nine hundred forty-nine thousand, two hundred forty-nine".