190206906 has 16 divisors (see below), whose sum is σ = 386650848. Its totient is φ = 62362800.

The previous prime is 190206889. The next prime is 190206949. The reversal of 190206906 is 609602091.

It is a happy 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, 259480 + ... + 260211.

It is an arithmetic number, because the mean of its divisors is an integer number (24165678).

Almost surely, 2^190206906 is an apocalyptic number.

190206906 is an abundant number, since it is smaller than the sum of its proper divisors (196443942).

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

190206906 is a wasteful number, since it uses less digits than its factorization.

190206906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519757.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 190206906 is about 13791.5519793822. The cubic root of 190206906 is about 575.0983131202.

Adding to 190206906 its reverse (609602091), we get a palindrome (799808997).

The spelling of 190206906 in words is "one hundred ninety million, two hundred six thousand, nine hundred six".