1340522344 has 32 divisors (see below), whose sum is σ = 2933671680. Its totient is φ = 562284864.

The previous prime is 1340522341. The next prime is 1340522383. The reversal of 1340522344 is 4432250431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1340522341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252027 + ... + 257290.

It is an arithmetic number, because the mean of its divisors is an integer number (91677240).

Almost surely, 2^1340522344 is an apocalyptic number.

1340522344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1340522344 is an abundant number, since it is smaller than the sum of its proper divisors (1593149336).

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

1340522344 is a wasteful number, since it uses less digits than its factorization.

1340522344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509377 (or 509373 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1340522344 is about 36613.1444156330. The cubic root of 1340522344 is about 1102.6170042232.

Adding to 1340522344 its reverse (4432250431), we get a palindrome (5772772775).

The spelling of 1340522344 in words is "one billion, three hundred forty million, five hundred twenty-two thousand, three hundred forty-four".