2049463442 has 8 divisors (see below), whose sum is σ = 3310671756. Its totient is φ = 945906192.

The previous prime is 2049463439. The next prime is 2049463447. The reversal of 2049463442 is 2443649402.

It is a Cunningham number, because it is equal to 45271²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2049463441 + 1 = 45271^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2049463396 and 2049463405.

It is not an unprimeable number, because it can be changed into a prime (2049463447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39412733 + ... + 39412784.

Almost surely, 2^2049463442 is an apocalyptic number.

2049463442 is a deficient number, since it is larger than the sum of its proper divisors (1261208314).

2049463442 is a wasteful number, since it uses less digits than its factorization.

2049463442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78825532.

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 2049463442 is about 45271.0000110446. Note that the first 4 decimals coincide. The cubic root of 2049463442 is about 1270.2232525455.

The spelling of 2049463442 in words is "two billion, forty-nine million, four hundred sixty-three thousand, four hundred forty-two".