1342321240 has 64 divisors (see below), whose sum is σ = 3256868160. Its totient is φ = 494968320.

The previous prime is 1342321223. The next prime is 1342321247. The reversal of 1342321240 is 421232431.

It is a super-2 number, since 2×1342321240² = 3603652622710275200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342321247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579685 + ... + 581995.

It is an arithmetic number, because the mean of its divisors is an integer number (50888565).

Almost surely, 2^1342321240 is an apocalyptic number.

1342321240 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 1342321240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628434080).

1342321240 is an abundant number, since it is smaller than the sum of its proper divisors (1914546920).

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

1342321240 is a wasteful number, since it uses less digits than its factorization.

1342321240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452 (or 3448 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1342321240 is about 36637.7024388812. The cubic root of 1342321240 is about 1103.1099978057.

Adding to 1342321240 its reverse (421232431), we get a palindrome (1763553671).

The spelling of 1342321240 in words is "one billion, three hundred forty-two million, three hundred twenty-one thousand, two hundred forty".