1906889448 has 64 divisors (see below), whose sum is σ = 4815961920. Its totient is φ = 629158400.

The previous prime is 1906889417. The next prime is 1906889449. The reversal of 1906889448 is 8449886091.

It is not an unprimeable number, because it can be changed into a prime (1906889449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392186 + ... + 2392982.

It is an arithmetic number, because the mean of its divisors is an integer number (75249405).

Almost surely, 2^1906889448 is an apocalyptic number.

It is an amenable number.

1906889448 is an abundant number, since it is smaller than the sum of its proper divisors (2909072472).

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

1906889448 is a wasteful number, since it uses less digits than its factorization.

1906889448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 57.

The square root of 1906889448 is about 43667.9453146126. The cubic root of 1906889448 is about 1240.0575432887.

The spelling of 1906889448 in words is "one billion, nine hundred six million, eight hundred eighty-nine thousand, four hundred forty-eight".