8455120 has 40 divisors (see below), whose sum is σ = 20817864. Its totient is φ = 3182592.

The previous prime is 8455093. The next prime is 8455121. The reversal of 8455120 is 215548.

It can be written as a sum of positive squares in 4 ways, for example, as 2637376 + 5817744 = 1624^2 + 2412^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8455121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749 + ... + 4468.

Almost surely, 2^8455120 is an apocalyptic number.

8455120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8455120 is an abundant number, since it is smaller than the sum of its proper divisors (12362744).

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

8455120 is a wasteful number, since it uses less digits than its factorization.

8455120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247 (or 6241 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 8455120 is about 2907.7689041600. The cubic root of 8455120 is about 203.7229354192.

It can be divided in two parts, 8455 and 120, that multiplied together give a triangular number (1014600 = T₁₄₂₄).

The spelling of 8455120 in words is "eight million, four hundred fifty-five thousand, one hundred twenty".