190881379 has 8 divisors (see below), whose sum is σ = 205723952. Its totient is φ = 176061600.

The previous prime is 190881371. The next prime is 190881401. The reversal of 190881379 is 973188091.

190881379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190881379 - 2³ = 190881371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190881371) 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, 14329 + ... + 24229.

It is an arithmetic number, because the mean of its divisors is an integer number (25715494).

Almost surely, 2^190881379 is an apocalyptic number.

190881379 is a deficient number, since it is larger than the sum of its proper divisors (14842573).

190881379 is a wasteful number, since it uses less digits than its factorization.

190881379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 190881379 is about 13815.9827373951. The cubic root of 190881379 is about 575.7772767294. Note that the first 3 decimals are identical.

The spelling of 190881379 in words is "one hundred ninety million, eight hundred eighty-one thousand, three hundred seventy-nine".