1363280 has 20 divisors (see below), whose sum is σ = 3169812. Its totient is φ = 545280.

The previous prime is 1363277. The next prime is 1363301. The reversal of 1363280 is 823631.

It can be written as a sum of positive squares in 2 ways, for example, as 906304 + 456976 = 952^2 + 676^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 5.

It is a congruent number.

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, 8441 + ... + 8600.

2^1363280 is an apocalyptic number.

1363280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1363280 is an abundant number, since it is smaller than the sum of its proper divisors (1806532).

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

1363280 is a wasteful number, since it uses less digits than its factorization.

1363280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17054 (or 17048 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1363280 is about 1167.5958204790. The cubic root of 1363280 is about 110.8821626415.

The spelling of 1363280 in words is "one million, three hundred sixty-three thousand, two hundred eighty".