1949079843 has 6 divisors (see below), whose sum is σ = 2815337564. Its totient is φ = 1299386556.

The previous prime is 1949079827. The next prime is 1949079851. The reversal of 1949079843 is 3489709491.

1949079843 is a `hidden beast` number, since 1 + 9 + 490 + 79 + 84 + 3 = 666.

It is not a de Polignac number, because 1949079843 - 2⁴ = 1949079827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1949079843.

It is not an unprimeable number, because it can be changed into a prime (1949079893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108282205 + ... + 108282222.

Almost surely, 2^1949079843 is an apocalyptic number.

1949079843 is a deficient number, since it is larger than the sum of its proper divisors (866257721).

1949079843 is a wasteful number, since it uses less digits than its factorization.

1949079843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216564433 (or 216564430 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1949079843 is about 44148.3843758750. The cubic root of 1949079843 is about 1249.1364367175.

The spelling of 1949079843 in words is "one billion, nine hundred forty-nine million, seventy-nine thousand, eight hundred forty-three".