994549440 has 224 divisors, whose sum is σ = 3403616256. Its totient is φ = 245329920.

The previous prime is 994549427. The next prime is 994549441. The reversal of 994549440 is 44945499.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 994549440.

It is not an unprimeable number, because it can be changed into a prime (994549441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 683754 + ... + 685206.

Almost surely, 2^994549440 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 994549440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701808128).

994549440 is an abundant number, since it is smaller than the sum of its proper divisors (2409066816).

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

994549440 is a wasteful number, since it uses less digits than its factorization.

994549440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 994549440 is about 31536.4779263633. The cubic root of 994549440 is about 998.1798356786.

The spelling of 994549440 in words is "nine hundred ninety-four million, five hundred forty-nine thousand, four hundred forty".