4160640 has 128 divisors (see below), whose sum is σ = 14541120. Its totient is φ = 1003520.

The previous prime is 4160617. The next prime is 4160641. The reversal of 4160640 is 460614.

4160640 = T₉₉ + T₁₀₀ + ... + T₂₉₅.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (4160641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21022 + ... + 21218.

Almost surely, 2^4160640 is an apocalyptic number.

4160640 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 4160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7270560).

4160640 is an abundant number, since it is smaller than the sum of its proper divisors (10380480).

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

4160640 is a wasteful number, since it uses less digits than its factorization.

4160640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4160640 is about 2039.7646923113. The cubic root of 4160640 is about 160.8372775632.

The spelling of 4160640 in words is "four million, one hundred sixty thousand, six hundred forty".