1278360 has 96 divisors (see below), whose sum is σ = 4296240. Its totient is φ = 329472.

The previous prime is 1278341. The next prime is 1278371. The reversal of 1278360 is 638721.

It is a nialpdrome in base 6.

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, 19047 + ... + 19113.

2^1278360 is an apocalyptic number.

1278360 is a gapful number since it is divisible by the number (10) 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 1278360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2148120).

1278360 is an abundant number, since it is smaller than the sum of its proper divisors (3017880).

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

1278360 is a wasteful number, since it uses less digits than its factorization.

1278360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1278360 is about 1130.6458331414. The cubic root of 1278360 is about 108.5303135443.

The spelling of 1278360 in words is "one million, two hundred seventy-eight thousand, three hundred sixty".