8055440 has 20 divisors (see below), whose sum is σ = 18729084. Its totient is φ = 3222144.

The previous prime is 8055413. The next prime is 8055461. The reversal of 8055440 is 445508.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 5456896 = 1612^2 + 2336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×8055440² = 129780227187200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50267 + ... + 50426.

Almost surely, 2^8055440 is an apocalyptic number.

8055440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8055440 is an abundant number, since it is smaller than the sum of its proper divisors (10673644).

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

8055440 is a wasteful number, since it uses less digits than its factorization.

8055440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100706 (or 100700 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 8055440 is about 2838.2107039471. The cubic root of 8055440 is about 200.4609368699.

The spelling of 8055440 in words is "eight million, fifty-five thousand, four hundred forty".