1340512244 has 24 divisors (see below), whose sum is σ = 2470540800. Its totient is φ = 634677120.

The previous prime is 1340512223. The next prime is 1340512249. The reversal of 1340512244 is 4422150431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340512249) 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, 313964 + ... + 318204.

It is an arithmetic number, because the mean of its divisors is an integer number (102939200).

Almost surely, 2^1340512244 is an apocalyptic number.

It is an amenable number.

1340512244 is a deficient number, since it is larger than the sum of its proper divisors (1130028556).

1340512244 is a wasteful number, since it uses less digits than its factorization.

1340512244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423 (or 8421 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1340512244 is about 36613.0064867664. The cubic root of 1340512244 is about 1102.6142350391.

Adding to 1340512244 its reverse (4422150431), we get a palindrome (5762662675).

The spelling of 1340512244 in words is "one billion, three hundred forty million, five hundred twelve thousand, two hundred forty-four".