1340432324 has 48 divisors (see below), whose sum is σ = 2932142976. Its totient is φ = 520896000.

The previous prime is 1340432323. The next prime is 1340432333. The reversal of 1340432324 is 4232340431.

It is a junction number, because it is equal to n+sod(n) for n = 1340432293 and 1340432302.

It is not an unprimeable number, because it can be changed into a prime (1340432323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118082 + ... + 128934.

It is an arithmetic number, because the mean of its divisors is an integer number (61086312).

Almost surely, 2^1340432324 is an apocalyptic number.

1340432324 is a gapful number since it is divisible by the number (14) 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 1340432324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466071488).

1340432324 is an abundant number, since it is smaller than the sum of its proper divisors (1591710652).

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

1340432324 is a wasteful number, since it uses less digits than its factorization.

1340432324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11276 (or 11274 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1340432324 is about 36611.9150550746. The cubic root of 1340432324 is about 1102.5923223507.

Adding to 1340432324 its reverse (4232340431), we get a palindrome (5572772755).

The spelling of 1340432324 in words is "one billion, three hundred forty million, four hundred thirty-two thousand, three hundred twenty-four".