1949355099 has 32 divisors (see below), whose sum is σ = 3096576000. Its totient is φ = 1207619712.

The previous prime is 1949355049. The next prime is 1949355119. The reversal of 1949355099 is 9905539491.

1949355099 is a `hidden beast` number, since 19 + 493 + 5 + 50 + 99 = 666.

It is not a de Polignac number, because 1949355099 - 2⁹ = 1949354587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1949355049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9382 + ... + 63140.

It is an arithmetic number, because the mean of its divisors is an integer number (96768000).

Almost surely, 2^1949355099 is an apocalyptic number.

1949355099 is a deficient number, since it is larger than the sum of its proper divisors (1147220901).

1949355099 is a wasteful number, since it uses less digits than its factorization.

1949355099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53864 (or 53858 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 54.

The square root of 1949355099 is about 44151.5016618914. The cubic root of 1949355099 is about 1249.1952364490.

The spelling of 1949355099 in words is "one billion, nine hundred forty-nine million, three hundred fifty-five thousand, ninety-nine".