1324315400 has 48 divisors (see below), whose sum is σ = 3088018500. Its totient is φ = 528180480.

The previous prime is 1324315397. The next prime is 1324315403. The reversal of 1324315400 is 45134231.

It is an interprime number because it is at equal distance from previous prime (1324315397) and next prime (1324315403).

It can be written as a sum of positive squares in 6 ways, for example, as 537961636 + 786353764 = 23194^2 + 28042^2 .

It is a super-2 number, since 2×1324315400² = 3507622557354320000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1324315403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60314 + ... + 79286.

Almost surely, 2^1324315400 is an apocalyptic number.

1324315400 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 1324315400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544009250).

1324315400 is an abundant number, since it is smaller than the sum of its proper divisors (1763703100).

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

1324315400 is a wasteful number, since it uses less digits than its factorization.

1324315400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19338 (or 19329 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1324315400 is about 36391.1445272061. The cubic root of 1324315400 is about 1098.1554209695.

Adding to 1324315400 its reverse (45134231), we get a palindrome (1369449631).

The spelling of 1324315400 in words is "one billion, three hundred twenty-four million, three hundred fifteen thousand, four hundred".