994823840 has 24 divisors (see below), whose sum is σ = 2350271700. Its totient is φ = 397929472.

The previous prime is 994823827. The next prime is 994823849. The reversal of 994823840 is 48328499.

It can be written as a sum of positive squares in 2 ways, for example, as 981192976 + 13630864 = 31324^2 + 3692^2 .

It is not an unprimeable number, because it can be changed into a prime (994823849) 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, 3108665 + ... + 3108984.

Almost surely, 2^994823840 is an apocalyptic number.

It is an amenable number.

994823840 is an abundant number, since it is smaller than the sum of its proper divisors (1355447860).

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

994823840 is a wasteful number, since it uses less digits than its factorization.

994823840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217664 (or 6217656 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 994823840 is about 31540.8281438519. The cubic root of 994823840 is about 998.2716277839.

The spelling of 994823840 in words is "nine hundred ninety-four million, eight hundred twenty-three thousand, eight hundred forty".