299999898 has 72 divisors (see below), whose sum is σ = 719353908. Its totient is φ = 90288000.

The previous prime is 299999897. The next prime is 299999923. The reversal of 299999898 is 898999992.

It can be written as a sum of positive squares in 2 ways, for example, as 173369889 + 126630009 = 13167^2 + 11253^2 .

Its product of digits (68024448) is a multiple of the sum of its prime factors (972).

It is not an unprimeable number, because it can be changed into a prime (299999897) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 393838 + ... + 394598.

Almost surely, 2^299999898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299999898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359676954).

299999898 is an abundant number, since it is smaller than the sum of its proper divisors (419354010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

299999898 is a wasteful number, since it uses less digits than its factorization.

299999898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 958 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 72.

The square root of 299999898 is about 17320.5051312021. The cubic root of 299999898 is about 669.4328742131.

The spelling of 299999898 in words is "two hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred ninety-eight".