8042644 has 24 divisors (see below), whose sum is σ = 14605920. Its totient is φ = 3872544.

The previous prime is 8042641. The next prime is 8042647. The reversal of 8042644 is 4462408.

It is an interprime number because it is at equal distance from previous prime (8042641) and next prime (8042647).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8042641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12187 + ... + 12829.

It is an arithmetic number, because the mean of its divisors is an integer number (608580).

Almost surely, 2^8042644 is an apocalyptic number.

It is an amenable number.

8042644 is a deficient number, since it is larger than the sum of its proper divisors (6563276).

8042644 is a wasteful number, since it uses less digits than its factorization.

8042644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 8042644 is about 2835.9555708791. The cubic root of 8042644 is about 200.3547371026.

It can be divided in two parts, 80 and 42644, that added together give a palindrome (42724).

The spelling of 8042644 in words is "eight million, forty-two thousand, six hundred forty-four".