99740378 has 8 divisors (see below), whose sum is σ = 149996340. Its totient is φ = 49741600.

The previous prime is 99740369. The next prime is 99740393. The reversal of 99740378 is 87304799.

It can be written as a sum of positive squares in 2 ways, for example, as 99660289 + 80089 = 9983^2 + 283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 63323 + ... + 64878.

Almost surely, 2^99740378 is an apocalyptic number.

99740378 is a deficient number, since it is larger than the sum of its proper divisors (50255962).

99740378 is a wasteful number, since it uses less digits than its factorization.

99740378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128592.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 99740378 is about 9987.0104635972. The cubic root of 99740378 is about 463.7568490451.

The spelling of 99740378 in words is "ninety-nine million, seven hundred forty thousand, three hundred seventy-eight".