7905280 has 56 divisors (see below), whose sum is σ = 19069812. Its totient is φ = 3145728.

The previous prime is 7905277. The next prime is 7905343. The reversal of 7905280 is 825097.

It can be written as a sum of positive squares in 2 ways, for example, as 7573504 + 331776 = 2752^2 + 576^2 .

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, 40864 + ... + 41056.

Almost surely, 2^7905280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7905280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9534906).

7905280 is an abundant number, since it is smaller than the sum of its proper divisors (11164532).

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

7905280 is an equidigital number, since it uses as much as digits as its factorization.

7905280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7905280 is about 2811.6329774706. The cubic root of 7905280 is about 199.2075307766.

The spelling of 7905280 in words is "seven million, nine hundred five thousand, two hundred eighty".