190820474 has 8 divisors (see below), whose sum is σ = 308248500. Its totient is φ = 88070976.

The previous prime is 190820473. The next prime is 190820533. The reversal of 190820474 is 474028091.

190820474 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 170955625 + 19864849 = 13075^2 + 4457^2 .

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 (190820473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3669599 + ... + 3669650.

Almost surely, 2^190820474 is an apocalyptic number.

190820474 is a deficient number, since it is larger than the sum of its proper divisors (117428026).

190820474 is a wasteful number, since it uses less digits than its factorization.

190820474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339264.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 190820474 is about 13813.7784114268. The cubic root of 190820474 is about 575.7160319821.

The spelling of 190820474 in words is "one hundred ninety million, eight hundred twenty thousand, four hundred seventy-four".