99339280 has 20 divisors (see below), whose sum is σ = 230964012. Its totient is φ = 39735680.

The previous prime is 99339271. The next prime is 99339281. The reversal of 99339280 is 8293399.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58736896 + 40602384 = 7664^2 + 6372^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (99339281) 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 3 ways as a sum of consecutive naturals, for example, 620791 + ... + 620950.

Almost surely, 2^99339280 is an apocalyptic number.

It is an amenable number.

99339280 is an abundant number, since it is smaller than the sum of its proper divisors (131624732).

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

99339280 is a wasteful number, since it uses less digits than its factorization.

99339280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241754 (or 1241748 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 99339280 is about 9966.9092501136. The cubic root of 99339280 is about 463.1343601025.

The spelling of 99339280 in words is "ninety-nine million, three hundred thirty-nine thousand, two hundred eighty".