1355842449 has 32 divisors (see below), whose sum is σ = 2204012160. Its totient is φ = 818610624.

The previous prime is 1355842409. The next prime is 1355842493. The reversal of 1355842449 is 9442485531.

1355842449 is a `hidden beast` number, since 1 + 3 + 5 + 584 + 24 + 49 = 666.

It is not a de Polignac number, because 1355842449 - 2⁸ = 1355842193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355842409) 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 31 ways as a sum of consecutive naturals, for example, 17839 + ... + 55044.

It is an arithmetic number, because the mean of its divisors is an integer number (68875380).

Almost surely, 2^1355842449 is an apocalyptic number.

It is an amenable number.

1355842449 is a deficient number, since it is larger than the sum of its proper divisors (848169711).

1355842449 is a wasteful number, since it uses less digits than its factorization.

1355842449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72958 (or 72952 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 1355842449 is about 36821.7659679706. The cubic root of 1355842449 is about 1106.8015081720.

The spelling of 1355842449 in words is "one billion, three hundred fifty-five million, eight hundred forty-two thousand, four hundred forty-nine".