5649445442 has 8 divisors (see below), whose sum is σ = 8523152316. Its totient is φ = 2808394672.

The previous prime is 5649445429. The next prime is 5649445469. The reversal of 5649445442 is 2445449465.

It can be written as a sum of positive squares in 2 ways, for example, as 4343996281 + 1305449161 = 65909^2 + 36131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8163593 + ... + 8164284.

Almost surely, 2^5649445442 is an apocalyptic number.

5649445442 is a deficient number, since it is larger than the sum of its proper divisors (2873706874).

5649445442 is a wasteful number, since it uses less digits than its factorization.

5649445442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16328052.

The product of its digits is 2764800, while the sum is 47.

The square root of 5649445442 is about 75162.7929363991. The cubic root of 5649445442 is about 1781.0192203946.

The spelling of 5649445442 in words is "five billion, six hundred forty-nine million, four hundred forty-five thousand, four hundred forty-two".