99378080 has 24 divisors (see below), whose sum is σ = 234781092. Its totient is φ = 39751168.

The previous prime is 99378079. The next prime is 99378091. The reversal of 99378080 is 8087399.

It can be written as a sum of positive squares in 2 ways, for example, as 90402064 + 8976016 = 9508^2 + 2996^2 .

It is an unprimeable number.

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, 310397 + ... + 310716.

Almost surely, 2^99378080 is an apocalyptic number.

It is an amenable number.

99378080 is an abundant number, since it is smaller than the sum of its proper divisors (135403012).

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

99378080 is a wasteful number, since it uses less digits than its factorization.

99378080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621128 (or 621120 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 99378080 is about 9968.8555010091. The cubic root of 99378080 is about 463.1946493596.

The spelling of 99378080 in words is "ninety-nine million, three hundred seventy-eight thousand, eighty".