894054640 has 20 divisors (see below), whose sum is σ = 2078677224. Its totient is φ = 357621824.

The previous prime is 894054631. The next prime is 894054647. The reversal of 894054640 is 46450498.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 894054593 and 894054602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894054647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5587762 + ... + 5587921.

Almost surely, 2^894054640 is an apocalyptic number.

894054640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

894054640 is an abundant number, since it is smaller than the sum of its proper divisors (1184622584).

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

894054640 is a wasteful number, since it uses less digits than its factorization.

894054640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11175696 (or 11175690 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 894054640 is about 29900.7464789761. The cubic root of 894054640 is about 963.3586926218.

The spelling of 894054640 in words is "eight hundred ninety-four million, fifty-four thousand, six hundred forty".