190771392 has 112 divisors (see below), whose sum is σ = 590450432. Its totient is φ = 53222400.

The previous prime is 190771379. The next prime is 190771397. The reversal of 190771392 is 293177091.

190771392 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 (112).

It is a self number, because there is not a number n which added to its sum of digits gives 190771392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190771397) 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, 56142 + ... + 59442.

Almost surely, 2^190771392 is an apocalyptic number.

190771392 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 190771392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295225216).

190771392 is an abundant number, since it is smaller than the sum of its proper divisors (399679040).

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

190771392 is a wasteful number, since it uses less digits than its factorization.

190771392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3356 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 190771392 is about 13812.0017376194. The cubic root of 190771392 is about 575.6666667039. Note that the first 6 decimals are identical.

The spelling of 190771392 in words is "one hundred ninety million, seven hundred seventy-one thousand, three hundred ninety-two".