894497849440 has 96 divisors (see below), whose sum is σ = 2276427506976. Its totient is φ = 330186362880.

The previous prime is 894497849437. The next prime is 894497849473. The reversal of 894497849440 is 44948794498.

It is a self number, because there is not a number n which added to its sum of digits gives 894497849440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7853700 + ... + 7966780.

It is an arithmetic number, because the mean of its divisors is an integer number (23712786531).

Almost surely, 2^894497849440 is an apocalyptic number.

894497849440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 894497849440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138213753488).

894497849440 is an abundant number, since it is smaller than the sum of its proper divisors (1381929657536).

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

894497849440 is a wasteful number, since it uses less digits than its factorization.

894497849440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116912 (or 116904 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 70.

The spelling of 894497849440 in words is "eight hundred ninety-four billion, four hundred ninety-seven million, eight hundred forty-nine thousand, four hundred forty".