1340031204 has 18 divisors (see below), whose sum is σ = 3387301190. Its totient is φ = 446677056.

The previous prime is 1340031197. The next prime is 1340031211. The reversal of 1340031204 is 4021300431.

It is an interprime number because it is at equal distance from previous prime (1340031197) and next prime (1340031211).

It can be written as a sum of positive squares in only one way, i.e., 1218149604 + 121881600 = 34902^2 + 11040^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18611509 + ... + 18611580.

Almost surely, 2^1340031204 is an apocalyptic number.

It is an amenable number.

1340031204 is an abundant number, since it is smaller than the sum of its proper divisors (2047269986).

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

1340031204 is a wasteful number, since it uses less digits than its factorization.

1340031204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37223099 (or 37223094 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1340031204 is about 36606.4366471253. The cubic root of 1340031204 is about 1102.4823289932.

Adding to 1340031204 its reverse (4021300431), we get a palindrome (5361331635).

The spelling of 1340031204 in words is "one billion, three hundred forty million, thirty-one thousand, two hundred four".