8434280 has 16 divisors (see below), whose sum is σ = 18977220. Its totient is φ = 3373696.

The previous prime is 8434259. The next prime is 8434289. The reversal of 8434280 is 824348.

It can be written as a sum of positive squares in 2 ways, for example, as 7963684 + 470596 = 2822^2 + 686^2 .

It is a super-2 number, since 2×8434280² = 142274158236800, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8434289) 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, 105389 + ... + 105468.

Almost surely, 2^8434280 is an apocalyptic number.

It is an amenable number.

8434280 is an abundant number, since it is smaller than the sum of its proper divisors (10542940).

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

8434280 is a wasteful number, since it uses less digits than its factorization.

8434280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210868 (or 210864 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 8434280 is about 2904.1831898143. The cubic root of 8434280 is about 203.5554203948. Note that the first 3 decimals are identical.

The spelling of 8434280 in words is "eight million, four hundred thirty-four thousand, two hundred eighty".