1342232440 has 64 divisors (see below), whose sum is σ = 3084480000. Its totient is φ = 525537408.

The previous prime is 1342232417. The next prime is 1342232509. The reversal of 1342232440 is 442322431.

It is a happy number.

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, 446061 + ... + 449059.

It is an arithmetic number, because the mean of its divisors is an integer number (48195000).

Almost surely, 2^1342232440 is an apocalyptic number.

1342232440 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 1342232440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542240000).

1342232440 is an abundant number, since it is smaller than the sum of its proper divisors (1742247560).

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

1342232440 is a wasteful number, since it uses less digits than its factorization.

1342232440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1342232440 is about 36636.4905524533. The cubic root of 1342232440 is about 1103.0856722010.

Adding to 1342232440 its reverse (442322431), we get a palindrome (1784554871).

The spelling of 1342232440 in words is "one billion, three hundred forty-two million, two hundred thirty-two thousand, four hundred forty".