1340330442 has 16 divisors (see below), whose sum is σ = 2924357472. Its totient is φ = 406160720.

The previous prime is 1340330437. The next prime is 1340330461. The reversal of 1340330442 is 2440330431.

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, 10153953 + ... + 10154084.

It is an arithmetic number, because the mean of its divisors is an integer number (182772342).

Almost surely, 2^1340330442 is an apocalyptic number.

1340330442 is an abundant number, since it is smaller than the sum of its proper divisors (1584027030).

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

1340330442 is a wasteful number, since it uses less digits than its factorization.

1340330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20308053.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1340330442 is about 36610.5236509941. The cubic root of 1340330442 is about 1102.5643867971.

Adding to 1340330442 its reverse (2440330431), we get a palindrome (3780660873).

The spelling of 1340330442 in words is "one billion, three hundred forty million, three hundred thirty thousand, four hundred forty-two".