1906217012 has 24 divisors (see below), whose sum is σ = 3890241600. Its totient is φ = 816949560.

The previous prime is 1906217011. The next prime is 1906217081. The reversal of 1906217012 is 2107126091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906217011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693314 + ... + 696057.

It is an arithmetic number, because the mean of its divisors is an integer number (162093400).

Almost surely, 2^1906217012 is an apocalyptic number.

It is an amenable number.

1906217012 is an abundant number, since it is smaller than the sum of its proper divisors (1984024588).

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

1906217012 is a wasteful number, since it uses less digits than its factorization.

1906217012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389396 (or 1389380 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1906217012 is about 43660.2452123210. The cubic root of 1906217012 is about 1239.9117635792.

The spelling of 1906217012 in words is "one billion, nine hundred six million, two hundred seventeen thousand, twelve".