99942344 has 8 divisors (see below), whose sum is σ = 187391910. Its totient is φ = 49971168.

The previous prime is 99942343. The next prime is 99942373. The reversal of 99942344 is 44324999.

It can be written as a sum of positive squares in only one way, i.e., 80317444 + 19624900 = 8962^2 + 4430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 99942295 and 99942304.

It is not an unprimeable number, because it can be changed into a prime (99942341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246389 + ... + 6246404.

Almost surely, 2^99942344 is an apocalyptic number.

It is an amenable number.

99942344 is a deficient number, since it is larger than the sum of its proper divisors (87449566).

99942344 is a wasteful number, since it uses less digits than its factorization.

99942344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12492799 (or 12492795 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 99942344 is about 9997.1167843534. The cubic root of 99942344 is about 464.0696610631.

The spelling of 99942344 in words is "ninety-nine million, nine hundred forty-two thousand, three hundred forty-four".