894728640 has 112 divisors (see below), whose sum is σ = 3059326368. Its totient is φ = 220237824.

The previous prime is 894728617. The next prime is 894728657. The reversal of 894728640 is 46827498.

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 894728640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23367 + ... + 48326.

It is an arithmetic number, because the mean of its divisors is an integer number (27315414).

Almost surely, 2^894728640 is an apocalyptic number.

894728640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

894728640 is an abundant number, since it is smaller than the sum of its proper divisors (2164597728).

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

894728640 is a wasteful number, since it uses less digits than its factorization.

894728640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71726 (or 71716 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 894728640 is about 29912.0149772629. The cubic root of 894728640 is about 963.6007138715.

The spelling of 894728640 in words is "eight hundred ninety-four million, seven hundred twenty-eight thousand, six hundred forty".