1340630560 has 48 divisors (see below), whose sum is σ = 3276466200. Its totient is φ = 517758976.

The previous prime is 1340630527. The next prime is 1340630579. The reversal of 1340630560 is 650360431.

It can be written as a sum of positive squares in 4 ways, for example, as 1308413584 + 32216976 = 36172^2 + 5676^2 .

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, 139825 + ... + 149104.

Almost surely, 2^1340630560 is an apocalyptic number.

1340630560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340630560 is an abundant number, since it is smaller than the sum of its proper divisors (1935835640).

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

1340630560 is a wasteful number, since it uses less digits than its factorization.

1340630560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288973 (or 288965 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1340630560 is about 36614.6222157214. The cubic root of 1340630560 is about 1102.6466736506.

Adding to 1340630560 its reverse (650360431), we get a palindrome (1990990991).

The spelling of 1340630560 in words is "one billion, three hundred forty million, six hundred thirty thousand, five hundred sixty".