894851072440 has 384 divisors, whose sum is σ = 2305728322560. Its totient is φ = 312036820992.

The previous prime is 894851072419. The next prime is 894851072449. The reversal of 894851072440 is 44270158498.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894851072449) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1916169087 + ... + 1916169553.

It is an arithmetic number, because the mean of its divisors is an integer number (6004500840).

Almost surely, 2^894851072440 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 894851072440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152864161280).

894851072440 is an abundant number, since it is smaller than the sum of its proper divisors (1410877250120).

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

894851072440 is a wasteful number, since it uses less digits than its factorization.

894851072440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 894851072440 in words is "eight hundred ninety-four billion, eight hundred fifty-one million, seventy-two thousand, four hundred forty".