1890056099 has 8 divisors (see below), whose sum is σ = 1934760960. Its totient is φ = 1845385416.

The previous prime is 1890056083. The next prime is 1890056117. The reversal of 1890056099 is 9906500981.

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

It is a cyclic number.

It is not a de Polignac number, because 1890056099 - 2⁴ = 1890056083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1890056029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129242 + ... + 143120.

It is an arithmetic number, because the mean of its divisors is an integer number (241845120).

Almost surely, 2^1890056099 is an apocalyptic number.

1890056099 is a deficient number, since it is larger than the sum of its proper divisors (44704861).

1890056099 is a wasteful number, since it uses less digits than its factorization.

1890056099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17089.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 1890056099 is about 43474.7754335776. The cubic root of 1890056099 is about 1236.3978226249.

The spelling of 1890056099 in words is "one billion, eight hundred ninety million, fifty-six thousand, ninety-nine".