4280320 has 104 divisors (see below), whose sum is σ = 11795040. Its totient is φ = 1474560.

The previous prime is 4280267. The next prime is 4280329. The reversal of 4280320 is 230824.

It is a happy number.

It is a super-2 number, since 2×4280320² = 36642278604800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280329) 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, 225271 + ... + 225289.

Almost surely, 2^4280320 is an apocalyptic number.

4280320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4280320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5897520).

4280320 is an abundant number, since it is smaller than the sum of its proper divisors (7514720).

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

4280320 is a wasteful number, since it uses less digits than its factorization.

4280320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4280320 is about 2068.8934240313. The cubic root of 4280320 is about 162.3648738609.

The spelling of 4280320 in words is "four million, two hundred eighty thousand, three hundred twenty".