1990885334 has 8 divisors (see below), whose sum is σ = 3161994408. Its totient is φ = 936887200.

The previous prime is 1990885331. The next prime is 1990885343. The reversal of 1990885334 is 4335880991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990885331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29277692 + ... + 29277759.

It is an arithmetic number, because the mean of its divisors is an integer number (395249301).

Almost surely, 2^1990885334 is an apocalyptic number.

1990885334 is a deficient number, since it is larger than the sum of its proper divisors (1171109074).

1990885334 is a wasteful number, since it uses less digits than its factorization.

1990885334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58555470.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 1990885334 is about 44619.3381170093. The cubic root of 1990885334 is about 1258.0041750674.

The spelling of 1990885334 in words is "one billion, nine hundred ninety million, eight hundred eighty-five thousand, three hundred thirty-four".