3802644 has 36 divisors (see below), whose sum is σ = 9798516. Its totient is φ = 1243008.

The previous prime is 3802621. The next prime is 3802649. The reversal of 3802644 is 4462083.

3802644 = T₃₅₂ + T₃₅₃ + ... + T₄₀₄.

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 1040400 = 1662^2 + 1020^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3802649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (272181).

Almost surely, 2^3802644 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 3802644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4899258).

3802644 is an abundant number, since it is smaller than the sum of its proper divisors (5995872).

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

3802644 is a wasteful number, since it uses less digits than its factorization.

3802644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 3802644 is about 1950.0369227274. The cubic root of 3802644 is about 156.0852591145.

The spelling of 3802644 in words is "three million, eight hundred two thousand, six hundred forty-four".