1340324442 has 16 divisors (see below), whose sum is σ = 2978498880. Its totient is φ = 446774796.

The previous prime is 1340324431. The next prime is 1340324459. The reversal of 1340324442 is 2444230431.

It is a happy number.

1340324442 is a `hidden beast` number, since 13 + 403 + 244 + 4 + 2 = 666.

It is a super-2 number, since 2×1340324442² = 3592939219645222728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12410358 + ... + 12410465.

It is an arithmetic number, because the mean of its divisors is an integer number (186156180).

Almost surely, 2^1340324442 is an apocalyptic number.

1340324442 is an abundant number, since it is smaller than the sum of its proper divisors (1638174438).

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

1340324442 is a wasteful number, since it uses less digits than its factorization.

1340324442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24820834 (or 24820828 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1340324442 is about 36610.4417072507. The cubic root of 1340324442 is about 1102.5627415819.

Adding to 1340324442 its reverse (2444230431), we get a palindrome (3784554873).

The spelling of 1340324442 in words is "one billion, three hundred forty million, three hundred twenty-four thousand, four hundred forty-two".