1340504404 has 6 divisors (see below), whose sum is σ = 2345882714. Its totient is φ = 670252200.

The previous prime is 1340504393. The next prime is 1340504411. The reversal of 1340504404 is 4044050431.

It can be written as a sum of positive squares in only one way, i.e., 675896004 + 664608400 = 25998^2 + 25780^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167563047 + ... + 167563054.

Almost surely, 2^1340504404 is an apocalyptic number.

It is an amenable number.

1340504404 is a deficient number, since it is larger than the sum of its proper divisors (1005378310).

1340504404 is a wasteful number, since it uses less digits than its factorization.

1340504404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335126105 (or 335126103 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1340504404 is about 36612.8994208325. The cubic root of 1340504404 is about 1102.6120854845.

Adding to 1340504404 its reverse (4044050431), we get a palindrome (5384554835).

The spelling of 1340504404 in words is "one billion, three hundred forty million, five hundred four thousand, four hundred four".