1906011808 has 24 divisors (see below), whose sum is σ = 3839730048. Its totient is φ = 930842304.

The previous prime is 1906011799. The next prime is 1906011841. The reversal of 1906011808 is 8081106091.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691216 + ... + 693967.

It is an arithmetic number, because the mean of its divisors is an integer number (159988752).

Almost surely, 2^1906011808 is an apocalyptic number.

It is an amenable number.

1906011808 is an abundant number, since it is smaller than the sum of its proper divisors (1933718240).

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

1906011808 is a wasteful number, since it uses less digits than its factorization.

1906011808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385236 (or 1385228 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 1906011808 is about 43657.8951393674. The cubic root of 1906011808 is about 1239.8672698721.

Adding to 1906011808 its reverse (8081106091), we get a palindrome (9987117899).

The spelling of 1906011808 in words is "one billion, nine hundred six million, eleven thousand, eight hundred eight".