4128280 has 64 divisors (see below), whose sum is σ = 10614240. Its totient is φ = 1431552.

The previous prime is 4128253. The next prime is 4128281. The reversal of 4128280 is 828214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8607 + ... + 9073.

Almost surely, 2^4128280 is an apocalyptic number.

4128280 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 4128280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5307120).

4128280 is an abundant number, since it is smaller than the sum of its proper divisors (6485960).

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

4128280 is a wasteful number, since it uses less digits than its factorization.

4128280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4128280 is about 2031.8169208863. The cubic root of 4128280 is about 160.4192131677.

The spelling of 4128280 in words is "four million, one hundred twenty-eight thousand, two hundred eighty".