8280444 has 12 divisors (see below), whose sum is σ = 19321064. Its totient is φ = 2760144.

The previous prime is 8280439. The next prime is 8280449. The reversal of 8280444 is 4440828.

8280444 = T₁₃₅₂ + T₁₃₅₃ + ... + T₁₃₆₀.

It is an interprime number because it is at equal distance from previous prime (8280439) and next prime (8280449).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345007 + ... + 345030.

Almost surely, 2^8280444 is an apocalyptic number.

It is an amenable number.

8280444 is an abundant number, since it is smaller than the sum of its proper divisors (11040620).

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

8280444 is a wasteful number, since it uses less digits than its factorization.

8280444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690044 (or 690042 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 8280444 is about 2877.5760632866. The cubic root of 8280444 is about 202.3102444341.

The spelling of 8280444 in words is "eight million, two hundred eighty thousand, four hundred forty-four".