1990808214 has 16 divisors (see below), whose sum is σ = 3995689152. Its totient is φ = 661257288.

The previous prime is 1990808191. The next prime is 1990808227. The reversal of 1990808214 is 4128080991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584524 + ... + 587919.

It is an arithmetic number, because the mean of its divisors is an integer number (249730572).

Almost surely, 2^1990808214 is an apocalyptic number.

1990808214 is an abundant number, since it is smaller than the sum of its proper divisors (2004880938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1990808214 is a wasteful number, since it uses less digits than its factorization.

1990808214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172731.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 1990808214 is about 44618.4739093573. The cubic root of 1990808214 is about 1257.9879312833.

The spelling of 1990808214 in words is "one billion, nine hundred ninety million, eight hundred eight thousand, two hundred fourteen".