2630280 has 64 divisors (see below), whose sum is σ = 8242560. Its totient is φ = 670208.

The previous prime is 2630239. The next prime is 2630281. The reversal of 2630280 is 820362.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2630281) 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, 2284 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (128790).

2^2630280 is an apocalyptic number.

2630280 is a gapful number since it is divisible by the number (20) 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 2630280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4121280).

2630280 is an abundant number, since it is smaller than the sum of its proper divisors (5612280).

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

2630280 is a wasteful number, since it uses less digits than its factorization.

2630280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2630280 is about 1621.8137994233. The cubic root of 2630280 is about 138.0386365247.

The spelling of 2630280 in words is "two million, six hundred thirty thousand, two hundred eighty".