190330450 has 12 divisors (see below), whose sum is σ = 354014730. Its totient is φ = 76132160.

The previous prime is 190330447. The next prime is 190330463. The reversal of 190330450 is 54033091.

It can be written as a sum of positive squares in 3 ways, for example, as 144889369 + 45441081 = 12037^2 + 6741^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1903255 + ... + 1903354.

Almost surely, 2^190330450 is an apocalyptic number.

190330450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190330450 is a deficient number, since it is larger than the sum of its proper divisors (163684280).

190330450 is a wasteful number, since it uses less digits than its factorization.

190330450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806621 (or 3806616 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 190330450 is about 13796.0302261194. The cubic root of 190330450 is about 575.2227996073. Note that the first 3 decimals are identical.

The spelling of 190330450 in words is "one hundred ninety million, three hundred thirty thousand, four hundred fifty".