190339493 has 4 divisors (see below), whose sum is σ = 190369740. Its totient is φ = 190309248.

The previous prime is 190339477. The next prime is 190339517. The reversal of 190339493 is 394933091.

190339493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112317604 + 78021889 = 10598^2 + 8833^2 .

It is a cyclic number.

It is not a de Polignac number, because 190339493 - 2⁴ = 190339477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190339493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190339453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730 + ... + 19587.

It is an arithmetic number, because the mean of its divisors is an integer number (47592435).

Almost surely, 2^190339493 is an apocalyptic number.

It is an amenable number.

190339493 is a deficient number, since it is larger than the sum of its proper divisors (30247).

190339493 is an equidigital number, since it uses as much as digits as its factorization.

190339493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30246.

The product of its (nonzero) digits is 78732, while the sum is 41.

The square root of 190339493 is about 13796.3579614332. The cubic root of 190339493 is about 575.2319094781.

The spelling of 190339493 in words is "one hundred ninety million, three hundred thirty-nine thousand, four hundred ninety-three".