1340265412 has 6 divisors (see below), whose sum is σ = 2345464478. Its totient is φ = 670132704.

The previous prime is 1340265389. The next prime is 1340265461. The reversal of 1340265412 is 2145620431.

It can be written as a sum of positive squares in only one way, i.e., 1212710976 + 127554436 = 34824^2 + 11294^2 .

It is a super-2 number, since 2×1340265412² = 3592622749207059488, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 167533173 + ... + 167533180.

Almost surely, 2^1340265412 is an apocalyptic number.

It is an amenable number.

1340265412 is a deficient number, since it is larger than the sum of its proper divisors (1005199066).

1340265412 is a wasteful number, since it uses less digits than its factorization.

1340265412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335066357 (or 335066355 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1340265412 is about 36609.6355076092. The cubic root of 1340265412 is about 1102.5465551442.

Adding to 1340265412 its reverse (2145620431), we get a palindrome (3485885843).

The spelling of 1340265412 in words is "one billion, three hundred forty million, two hundred sixty-five thousand, four hundred twelve".