1340333426 has 16 divisors (see below), whose sum is σ = 2080776600. Its totient is φ = 646762368.

The previous prime is 1340333389. The next prime is 1340333437. The reversal of 1340333426 is 6243330431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 616777225 + 723556201 = 24835^2 + 26899^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 176606 + ... + 184038.

Almost surely, 2^1340333426 is an apocalyptic number.

1340333426 is a deficient number, since it is larger than the sum of its proper divisors (740443174).

1340333426 is a wasteful number, since it uses less digits than its factorization.

1340333426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10573.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 1340333426 is about 36610.5644042809. The cubic root of 1340333426 is about 1102.5652050157.

Adding to 1340333426 its reverse (6243330431), we get a palindrome (7583663857).

The spelling of 1340333426 in words is "one billion, three hundred forty million, three hundred thirty-three thousand, four hundred twenty-six".