2275780 has 24 divisors (see below), whose sum is σ = 5147352. Its totient is φ = 840192.

The previous prime is 2275771. The next prime is 2275813. The reversal of 2275780 is 875722.

It can be written as a sum of positive squares in 4 ways, for example, as 248004 + 2027776 = 498^2 + 1424^2 .

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, 4117 + ... + 4636.

It is an arithmetic number, because the mean of its divisors is an integer number (214473).

2^2275780 is an apocalyptic number.

2275780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2275780 is an abundant number, since it is smaller than the sum of its proper divisors (2871572).

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

2275780 is a wasteful number, since it uses less digits than its factorization.

2275780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8775 (or 8773 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 2275780 is about 1508.5688582229. The cubic root of 2275780 is about 131.5356349232.

The spelling of 2275780 in words is "two million, two hundred seventy-five thousand, seven hundred eighty".