1330830 has 80 divisors (see below), whose sum is σ = 3763584. Its totient is φ = 336960.

The previous prime is 1330789. The next prime is 1330831. The reversal of 1330830 is 380331.

It is a super-2 number, since 2×1330830² = 3542216977800, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330831) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25084 + ... + 25136.

2^1330830 is an apocalyptic number.

1330830 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 1330830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1881792).

1330830 is an abundant number, since it is smaller than the sum of its proper divisors (2432754).

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

1330830 is a wasteful number, since it uses less digits than its factorization.

1330830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 94 counting only the distinct ones).

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

The square root of 1330830 is about 1153.6160539798. The cubic root of 1330830 is about 109.9953166050.

The spelling of 1330830 in words is "one million, three hundred thirty thousand, eight hundred thirty".