3810640 has 80 divisors (see below), whose sum is σ = 9820800. Its totient is φ = 1368576.

The previous prime is 3810637. The next prime is 3810643. The reversal of 3810640 is 460183.

It is an interprime number because it is at equal distance from previous prime (3810637) and next prime (3810643).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3810643) 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, 34906 + ... + 35014.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

Almost surely, 2^3810640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3810640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4910400).

3810640 is an abundant number, since it is smaller than the sum of its proper divisors (6010160).

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

3810640 is a wasteful number, since it uses less digits than its factorization.

3810640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3810640 is about 1952.0860636765. The cubic root of 3810640 is about 156.1945851492.

The spelling of 3810640 in words is "three million, eight hundred ten thousand, six hundred forty".