190743920 has 40 divisors (see below), whose sum is σ = 449108160. Its totient is φ = 75329280.

The previous prime is 190743919. The next prime is 190743923. The reversal of 190743920 is 29347091.

190743920 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 (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190743923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8771 + ... + 21410.

It is an arithmetic number, because the mean of its divisors is an integer number (11227704).

Almost surely, 2^190743920 is an apocalyptic number.

190743920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190743920 is an abundant number, since it is smaller than the sum of its proper divisors (258364240).

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

190743920 is a wasteful number, since it uses less digits than its factorization.

190743920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30273 (or 30267 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 190743920 is about 13811.0072044004. The cubic root of 190743920 is about 575.6390324524.

The spelling of 190743920 in words is "one hundred ninety million, seven hundred forty-three thousand, nine hundred twenty".