190906660 has 96 divisors (see below), whose sum is σ = 476421120. Its totient is φ = 62899200.

The previous prime is 190906603. The next prime is 190906663. The reversal of 190906660 is 66609091.

It is not an unprimeable number, because it can be changed into a prime (190906663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453250 + ... + 453670.

It is an arithmetic number, because the mean of its divisors is an integer number (4962720).

Almost surely, 2^190906660 is an apocalyptic number.

190906660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190906660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238210560).

190906660 is an abundant number, since it is smaller than the sum of its proper divisors (285514460).

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

190906660 is a wasteful number, since it uses less digits than its factorization.

190906660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 190906660 is about 13816.8976257335. The cubic root of 190906660 is about 575.8026949286.

The spelling of 190906660 in words is "one hundred ninety million, nine hundred six thousand, six hundred sixty".