196040402 has 4 divisors (see below), whose sum is σ = 294060606. Its totient is φ = 98020200.

The previous prime is 196040381. The next prime is 196040407. The reversal of 196040402 is 204040691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204040691 = 2039 ⋅100069.

It can be written as a sum of positive squares in only one way, i.e., 100020001 + 96020401 = 10001^2 + 9799^2 .

It is not an unprimeable number, because it can be changed into a prime (196040407) 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 as a sum of consecutive naturals, namely, 49010099 + ... + 49010102.

Almost surely, 2^196040402 is an apocalyptic number.

196040402 is a deficient number, since it is larger than the sum of its proper divisors (98020204).

196040402 is an equidigital number, since it uses as much as digits as its factorization.

196040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98020203.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 196040402 is about 14001.4428542204. The cubic root of 196040402 is about 580.9184832947.

The spelling of 196040402 in words is "one hundred ninety-six million, forty thousand, four hundred two".