994859440 has 80 divisors (see below), whose sum is σ = 2395560960. Its totient is φ = 383834880.

The previous prime is 994859429. The next prime is 994859447. The reversal of 994859440 is 44958499.

994859440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×994859440² = 1979490610714227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (994859447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157731 + ... + 1158589.

It is an arithmetic number, because the mean of its divisors is an integer number (29944512).

Almost surely, 2^994859440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994859440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197780480).

994859440 is an abundant number, since it is smaller than the sum of its proper divisors (1400701520).

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

994859440 is a wasteful number, since it uses less digits than its factorization.

With its successor (994859441) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1364).

994859440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 994859440 is about 31541.3924866991. The cubic root of 994859440 is about 998.2835354351.

The spelling of 994859440 in words is "nine hundred ninety-four million, eight hundred fifty-nine thousand, four hundred forty".