1380330 has 72 divisors (see below), whose sum is σ = 4188132. Its totient is φ = 314496.

The previous prime is 1380329. The next prime is 1380341. The reversal of 1380330 is 330831.

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 233289 = 1071^2 + 483^2 .

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

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4254 + ... + 4566.

2^1380330 is an apocalyptic number.

1380330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094066).

1380330 is an abundant number, since it is smaller than the sum of its proper divisors (2807802).

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

1380330 is a wasteful number, since it uses less digits than its factorization.

1380330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1380330 is about 1174.8744613787. The cubic root of 1380330 is about 111.3425018644.

The spelling of 1380330 in words is "one million, three hundred eighty thousand, three hundred thirty".