894421440 has 280 divisors, whose sum is σ = 3471958512. Its totient is φ = 216760320.

The previous prime is 894421433. The next prime is 894421511. The reversal of 894421440 is 44124498.

894421440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 894421395 and 894421404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 283552 + ... + 286688.

Almost surely, 2^894421440 is an apocalyptic number.

894421440 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 894421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1735979256).

894421440 is an abundant number, since it is smaller than the sum of its proper divisors (2577537072).

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

894421440 is a wasteful number, since it uses less digits than its factorization.

894421440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177 (or 3158 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 894421440 is about 29906.8794761339. The cubic root of 894421440 is about 963.4904189689.

The spelling of 894421440 in words is "eight hundred ninety-four million, four hundred twenty-one thousand, four hundred forty".