4895640 has 80 divisors (see below), whose sum is σ = 16465680. Its totient is φ = 1304640.

The previous prime is 4895629. The next prime is 4895641. The reversal of 4895640 is 465984.

4895640 is a `hidden beast` number, since 4 + 8 + 9 + 5 + 640 = 666.

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 = 4895595 and 4895604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4895641) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 2485 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (205821).

Almost surely, 2^4895640 is an apocalyptic number.

4895640 is a gapful number since it is divisible by the number (40) 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 4895640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8232840).

4895640 is an abundant number, since it is smaller than the sum of its proper divisors (11570040).

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

4895640 is a wasteful number, since it uses less digits than its factorization.

4895640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4895640 is about 2212.6093193332. The cubic root of 4895640 is about 169.7995330182.

The spelling of 4895640 in words is "four million, eight hundred ninety-five thousand, six hundred forty".