1340111434 has 4 divisors (see below), whose sum is σ = 2010167154. Its totient is φ = 670055716.

The previous prime is 1340111419. The next prime is 1340111447. The reversal of 1340111434 is 4341110431.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 754326225 + 585785209 = 27465^2 + 24203^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335027857 + ... + 335027860.

Almost surely, 2^1340111434 is an apocalyptic number.

1340111434 is a deficient number, since it is larger than the sum of its proper divisors (670055720).

1340111434 is an equidigital number, since it uses as much as digits as its factorization.

1340111434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670055719.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1340111434 is about 36607.5324762541. The cubic root of 1340111434 is about 1102.5043310659.

Adding to 1340111434 its reverse (4341110431), we get a palindrome (5681221865).

The spelling of 1340111434 in words is "one billion, three hundred forty million, one hundred eleven thousand, four hundred thirty-four".