1913384499 has 16 divisors (see below), whose sum is σ = 2792467104. Its totient is φ = 1158163200.

The previous prime is 1913384497. The next prime is 1913384537. The reversal of 1913384499 is 9944833191.

It is not a de Polignac number, because 1913384499 - 2¹ = 1913384497 is a prime.

It is a super-2 number, since 2×1913384499² = 7322080482026962002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1913384491) 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 in 15 ways as a sum of consecutive naturals, for example, 399762 + ... + 404519.

It is an arithmetic number, because the mean of its divisors is an integer number (174529194).

Almost surely, 2^1913384499 is an apocalyptic number.

1913384499 is a deficient number, since it is larger than the sum of its proper divisors (879082605).

1913384499 is a wasteful number, since it uses less digits than its factorization.

1913384499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804358.

The product of its digits is 839808, while the sum is 51.

The square root of 1913384499 is about 43742.2507308437. The cubic root of 1913384499 is about 1241.4638666870.

The spelling of 1913384499 in words is "one billion, nine hundred thirteen million, three hundred eighty-four thousand, four hundred ninety-nine".