99942398 has 24 divisors (see below), whose sum is σ = 156066912. Its totient is φ = 47975424.

The previous prime is 99942397. The next prime is 99942407. The reversal of 99942398 is 89324999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99942397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884390 + ... + 884502.

It is an arithmetic number, because the mean of its divisors is an integer number (6502788).

Almost surely, 2^99942398 is an apocalyptic number.

99942398 is a deficient number, since it is larger than the sum of its proper divisors (56124514).

99942398 is a wasteful number, since it uses less digits than its factorization.

99942398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 259 counting only the distinct ones).

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

The square root of 99942398 is about 9997.1194851317. The cubic root of 99942398 is about 464.0697446439.

The spelling of 99942398 in words is "ninety-nine million, nine hundred forty-two thousand, three hundred ninety-eight".