1906818 has 16 divisors (see below), whose sum is σ = 3835200. Its totient is φ = 632016.

The previous prime is 1906811. The next prime is 1906829. The reversal of 1906818 is 8186091.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1906811) 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, 396 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (239700).

2^1906818 is an apocalyptic number.

1906818 is an abundant number, since it is smaller than the sum of its proper divisors (1928382).

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

1906818 is a wasteful number, since it uses less digits than its factorization.

1906818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1906818 is about 1380.8758090429. The cubic root of 1906818 is about 124.0042055459.

The spelling of 1906818 in words is "one million, nine hundred six thousand, eight hundred eighteen".