1340635435 has 4 divisors (see below), whose sum is σ = 1608762528. Its totient is φ = 1072508344.

The previous prime is 1340635411. The next prime is 1340635463. The reversal of 1340635435 is 5345360431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1340635435 - 2¹¹ = 1340633387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340635435.

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, 134063539 + ... + 134063548.

It is an arithmetic number, because the mean of its divisors is an integer number (402190632).

Almost surely, 2^1340635435 is an apocalyptic number.

1340635435 is a deficient number, since it is larger than the sum of its proper divisors (268127093).

1340635435 is an equidigital number, since it uses as much as digits as its factorization.

1340635435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268127092.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 1340635435 is about 36614.6887874252. The cubic root of 1340635435 is about 1102.6480101849.

Adding to 1340635435 its reverse (5345360431), we get a palindrome (6685995866).

It can be divided in two parts, 13406 and 35435, that added together give a square (48841 = 221²).

The spelling of 1340635435 in words is "one billion, three hundred forty million, six hundred thirty-five thousand, four hundred thirty-five".