2142049456 has 10 divisors (see below), whose sum is σ = 4150220852. Its totient is φ = 1071024720.

The previous prime is 2142049451. The next prime is 2142049489. The reversal of 2142049456 is 6549402412.

It is not an unprimeable number, because it can be changed into a prime (2142049451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66939030 + ... + 66939061.

Almost surely, 2^2142049456 is an apocalyptic number.

It is an amenable number.

2142049456 is a deficient number, since it is larger than the sum of its proper divisors (2008171396).

2142049456 is a wasteful number, since it uses less digits than its factorization.

2142049456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133878099 (or 133878093 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2142049456 is about 46282.2801512631. The cubic root of 2142049456 is about 1289.0699896976.

It can be divided in two parts, 21420 and 49456, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 2142049456 in words is "two billion, one hundred forty-two million, forty-nine thousand, four hundred fifty-six".