190468778 has 8 divisors (see below), whose sum is σ = 285785280. Its totient is φ = 95207020.

The previous prime is 190468777. The next prime is 190468783. The reversal of 190468778 is 877864091.

190468778 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 an unprimeable number, because it can be changed into a prime (190468777) 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, 3458 + ... + 19821.

It is an arithmetic number, because the mean of its divisors is an integer number (35723160).

Almost surely, 2^190468778 is an apocalyptic number.

190468778 is a deficient number, since it is larger than the sum of its proper divisors (95316502).

190468778 is a wasteful number, since it uses less digits than its factorization.

190468778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27372.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 190468778 is about 13801.0426417717. The cubic root of 190468778 is about 575.3621189696.

The spelling of 190468778 in words is "one hundred ninety million, four hundred sixty-eight thousand, seven hundred seventy-eight".