2405280 has 48 divisors (see below), whose sum is σ = 7578144. Its totient is φ = 641280.

The previous prime is 2405269. The next prime is 2405297. The reversal of 2405280 is 825042.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026 + ... + 2985.

It is an arithmetic number, because the mean of its divisors is an integer number (157878).

2^2405280 is an apocalyptic number.

2405280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2405280 is an abundant number, since it is smaller than the sum of its proper divisors (5172864).

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

2405280 is a wasteful number, since it uses less digits than its factorization.

2405280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2405280 is about 1550.8965149229. The cubic root of 2405280 is about 133.9847016024.

The spelling of 2405280 in words is "two million, four hundred five thousand, two hundred eighty".