1378260 has 144 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 311040.

The previous prime is 1378253. The next prime is 1378271. The reversal of 1378260 is 628731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44445 + ... + 44475.

2^1378260 is an apocalyptic number.

1378260 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 1378260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446080).

1378260 is an abundant number, since it is smaller than the sum of its proper divisors (3513900).

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

1378260 is a wasteful number, since it uses less digits than its factorization.

1378260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 73 counting only the distinct ones).

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

The square root of 1378260 is about 1173.9931856702. The cubic root of 1378260 is about 111.2868160775.

The spelling of 1378260 in words is "one million, three hundred seventy-eight thousand, two hundred sixty".