1899604994 has 8 divisors (see below), whose sum is σ = 3256465728. Its totient is φ = 814116420.

The previous prime is 1899604979. The next prime is 1899605017. The reversal of 1899604994 is 4994069981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67843022 + ... + 67843049.

It is an arithmetic number, because the mean of its divisors is an integer number (407058216).

Almost surely, 2^1899604994 is an apocalyptic number.

1899604994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1899604994 is a deficient number, since it is larger than the sum of its proper divisors (1356860734).

1899604994 is a wasteful number, since it uses less digits than its factorization.

1899604994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135686080.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The square root of 1899604994 is about 43584.4581703157. The cubic root of 1899604994 is about 1238.4764921811.

The spelling of 1899604994 in words is "one billion, eight hundred ninety-nine million, six hundred four thousand, nine hundred ninety-four".