1340443026 has 32 divisors (see below), whose sum is σ = 3207899520. Its totient is φ = 412443792.

The previous prime is 1340443021. The next prime is 1340443033. The reversal of 1340443026 is 6203440431.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1340443021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954030 + ... + 955433.

It is an arithmetic number, because the mean of its divisors is an integer number (100246860).

Almost surely, 2^1340443026 is an apocalyptic number.

1340443026 is an abundant number, since it is smaller than the sum of its proper divisors (1867456494).

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

1340443026 is a wasteful number, since it uses less digits than its factorization.

1340443026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909487 (or 1909481 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1340443026 is about 36612.0612093884. The cubic root of 1340443026 is about 1102.5952567054.

Adding to 1340443026 its reverse (6203440431), we get a palindrome (7543883457).

The spelling of 1340443026 in words is "one billion, three hundred forty million, four hundred forty-three thousand, twenty-six".