998740306 has 4 divisors (see below), whose sum is σ = 1498110462. Its totient is φ = 499370152.

The previous prime is 998740261. The next prime is 998740307. The reversal of 998740306 is 603047899.

998740306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603047899 = 271 ⋅2225269.

It can be written as a sum of positive squares in only one way, i.e., 986525281 + 12215025 = 31409^2 + 3495^2 .

It is not an unprimeable number, because it can be changed into a prime (998740307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249685075 + ... + 249685078.

Almost surely, 2^998740306 is an apocalyptic number.

998740306 is a deficient number, since it is larger than the sum of its proper divisors (499370156).

998740306 is a wasteful number, since it uses less digits than its factorization.

998740306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499370155.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 998740306 is about 31602.8528142635. The cubic root of 998740306 is about 999.5799255622.

The spelling of 998740306 in words is "nine hundred ninety-eight million, seven hundred forty thousand, three hundred six".