190691712 has 128 divisors (see below), whose sum is σ = 587520000. Its totient is φ = 60774912.

The previous prime is 190691671. The next prime is 190691719. The reversal of 190691712 is 217196091.

190691712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190691719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78289 + ... + 80687.

It is an arithmetic number, because the mean of its divisors is an integer number (4590000).

Almost surely, 2^190691712 is an apocalyptic number.

190691712 is a gapful number since it is divisible by the number (12) 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 190691712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293760000).

190691712 is an abundant number, since it is smaller than the sum of its proper divisors (396828288).

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

190691712 is a wasteful number, since it uses less digits than its factorization.

190691712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2427 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 190691712 is about 13809.1169884247. The cubic root of 190691712 is about 575.5865087950.

The spelling of 190691712 in words is "one hundred ninety million, six hundred ninety-one thousand, seven hundred twelve".