1340144206 has 8 divisors (see below), whose sum is σ = 2010707424. Its totient is φ = 669908400.

The previous prime is 1340144191. The next prime is 1340144237. The reversal of 1340144206 is 6024410431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71350 + ... + 88153.

It is an arithmetic number, because the mean of its divisors is an integer number (251338428).

Almost surely, 2^1340144206 is an apocalyptic number.

1340144206 is a deficient number, since it is larger than the sum of its proper divisors (670563218).

1340144206 is a wasteful number, since it uses less digits than its factorization.

1340144206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163706.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1340144206 is about 36607.9800863145. The cubic root of 1340144206 is about 1102.5133181239.

Adding to 1340144206 its reverse (6024410431), we get a palindrome (7364554637).

The spelling of 1340144206 in words is "one billion, three hundred forty million, one hundred forty-four thousand, two hundred six".