190669906 has 32 divisors (see below), whose sum is σ = 331269120. Its totient is φ = 80623296.

The previous prime is 190669889. The next prime is 190669949. The reversal of 190669906 is 609966091.

190669906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489960 + ... + 490348.

It is an arithmetic number, because the mean of its divisors is an integer number (10352160).

Almost surely, 2^190669906 is an apocalyptic number.

190669906 is a deficient number, since it is larger than the sum of its proper divisors (140599214).

190669906 is a wasteful number, since it uses less digits than its factorization.

190669906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 190669906 is about 13808.3274150058. The cubic root of 190669906 is about 575.5645681144.

The spelling of 190669906 in words is "one hundred ninety million, six hundred sixty-nine thousand, nine hundred six".