1301280 has 48 divisors (see below), whose sum is σ = 4100544. Its totient is φ = 346880.

The previous prime is 1301273. The next prime is 1301281. The reversal of 1301280 is 821031.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1301281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876 + ... + 1835.

It is an arithmetic number, because the mean of its divisors is an integer number (85428).

2^1301280 is an apocalyptic number.

1301280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301280 is an abundant number, since it is smaller than the sum of its proper divisors (2799264).

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

1301280 is a wasteful number, since it uses less digits than its factorization.

1301280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1301280 is about 1140.7366041291. The cubic root of 1301280 is about 109.1750966303.

Subtracting from 1301280 its reverse (821031), we obtain a square (480249 = 693²).

The spelling of 1301280 in words is "one million, three hundred one thousand, two hundred eighty".