99389942 has 8 divisors (see below), whose sum is σ = 152552136. Its totient is φ = 48539232.

The previous prime is 99389921. The next prime is 99389947. The reversal of 99389942 is 24998399.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99389947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577763 + ... + 577934.

It is an arithmetic number, because the mean of its divisors is an integer number (19069017).

Almost surely, 2^99389942 is an apocalyptic number.

99389942 is a deficient number, since it is larger than the sum of its proper divisors (53162194).

99389942 is a wasteful number, since it uses less digits than its factorization.

99389942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155742.

The product of its digits is 1259712, while the sum is 53.

The square root of 99389942 is about 9969.4504362076. The cubic root of 99389942 is about 463.2130779585.

The spelling of 99389942 in words is "ninety-nine million, three hundred eighty-nine thousand, nine hundred forty-two".