189782002 has 4 divisors (see below), whose sum is σ = 284673006. Its totient is φ = 94891000.

The previous prime is 189781997. The next prime is 189782009. The reversal of 189782002 is 200287981.

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

It can be written as a sum of positive squares in only one way, i.e., 139499721 + 50282281 = 11811^2 + 7091^2 .

It is not an unprimeable number, because it can be changed into a prime (189782009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47445499 + ... + 47445502.

Almost surely, 2^189782002 is an apocalyptic number.

189782002 is a deficient number, since it is larger than the sum of its proper divisors (94891004).

189782002 is an equidigital number, since it uses as much as digits as its factorization.

189782002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94891003.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 189782002 is about 13776.1388639923. The cubic root of 189782002 is about 574.6697556701.

The spelling of 189782002 in words is "one hundred eighty-nine million, seven hundred eighty-two thousand, two".