1380600 has 144 divisors (see below), whose sum is σ = 5077800. Its totient is φ = 334080.

The previous prime is 1380571. The next prime is 1380607. The reversal of 1380600 is 60831.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380607) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23371 + ... + 23429.

2^1380600 is an apocalyptic number.

1380600 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 1380600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2538900).

1380600 is an abundant number, since it is smaller than the sum of its proper divisors (3697200).

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

1380600 is a wasteful number, since it uses less digits than its factorization.

1380600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1380600 is about 1174.9893616540. The cubic root of 1380600 is about 111.3497611226.

The spelling of 1380600 in words is "one million, three hundred eighty thousand, six hundred".