1328340630 has 32 divisors (see below), whose sum is σ = 3189660768. Its totient is φ = 354041600.

The previous prime is 1328340619. The next prime is 1328340641. The reversal of 1328340630 is 360438231.

It is an interprime number because it is at equal distance from previous prime (1328340619) and next prime (1328340641).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53890 + ... + 74570.

It is an arithmetic number, because the mean of its divisors is an integer number (99676899).

Almost surely, 2^1328340630 is an apocalyptic number.

1328340630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328340630 is an abundant number, since it is smaller than the sum of its proper divisors (1861320138).

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

1328340630 is a wasteful number, since it uses less digits than its factorization.

1328340630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22832.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1328340630 is about 36446.4076419062. The cubic root of 1328340630 is about 1099.2669027189.

Adding to 1328340630 its reverse (360438231), we get a palindrome (1688778861).

The spelling of 1328340630 in words is "one billion, three hundred twenty-eight million, three hundred forty thousand, six hundred thirty".