2663280 has 120 divisors (see below), whose sum is σ = 9343152. Its totient is φ = 705024.

The previous prime is 2663279. The next prime is 2663293. The reversal of 2663280 is 823662.

2663280 = T₂₁₇ + T₂₁₈ + ... + T₂₉₆.

2663280 is a `hidden beast` number, since 26 + 632 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19372 + ... + 19508.

2^2663280 is an apocalyptic number.

2663280 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 2663280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4671576).

2663280 is an abundant number, since it is smaller than the sum of its proper divisors (6679872).

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

2663280 is a wasteful number, since it uses less digits than its factorization.

2663280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2663280 is about 1631.9558817566. The cubic root of 2663280 is about 138.6135254131.

The spelling of 2663280 in words is "two million, six hundred sixty-three thousand, two hundred eighty".