1340043224 has 32 divisors (see below), whose sum is σ = 2865028320. Its totient is φ = 582099456.

The previous prime is 1340043163. The next prime is 1340043247. The reversal of 1340043224 is 4223400431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340043224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377204 + ... + 380739.

It is an arithmetic number, because the mean of its divisors is an integer number (89532135).

Almost surely, 2^1340043224 is an apocalyptic number.

It is an amenable number.

1340043224 is an abundant number, since it is smaller than the sum of its proper divisors (1524985096).

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

1340043224 is a wasteful number, since it uses less digits than its factorization.

1340043224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757979 (or 757975 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1340043224 is about 36606.6008255342. The cubic root of 1340043224 is about 1102.4856253835.

Adding to 1340043224 its reverse (4223400431), we get a palindrome (5563443655).

The spelling of 1340043224 in words is "one billion, three hundred forty million, forty-three thousand, two hundred twenty-four".