1949860768 has 24 divisors (see below), whose sum is σ = 3862349568. Its totient is φ = 968946624.

The previous prime is 1949860763. The next prime is 1949860823. The reversal of 1949860768 is 8670689491.

It is not an unprimeable number, because it can be changed into a prime (1949860763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181696 + ... + 192127.

It is an arithmetic number, because the mean of its divisors is an integer number (160931232).

Almost surely, 2^1949860768 is an apocalyptic number.

It is an amenable number.

1949860768 is a deficient number, since it is larger than the sum of its proper divisors (1912488800).

1949860768 is a wasteful number, since it uses less digits than its factorization.

1949860768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373996 (or 373988 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The square root of 1949860768 is about 44157.2278115373. The cubic root of 1949860768 is about 1249.3032422017.

The spelling of 1949860768 in words is "one billion, nine hundred forty-nine million, eight hundred sixty thousand, seven hundred sixty-eight".