1340431022 has 16 divisors (see below), whose sum is σ = 2307502080. Its totient is φ = 572065368.

The previous prime is 1340431021. The next prime is 1340431031. The reversal of 1340431022 is 2201340431.

It is a junction number, because it is equal to n+sod(n) for n = 1340430985 and 1340431003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340431021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196958 + ... + 203649.

It is an arithmetic number, because the mean of its divisors is an integer number (144218880).

Almost surely, 2^1340431022 is an apocalyptic number.

1340431022 is a deficient number, since it is larger than the sum of its proper divisors (967071058).

1340431022 is a wasteful number, since it uses less digits than its factorization.

1340431022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400855.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1340431022 is about 36611.8972739737. The cubic root of 1340431022 is about 1102.5919653575.

Adding to 1340431022 its reverse (2201340431), we get a palindrome (3541771453).

The spelling of 1340431022 in words is "one billion, three hundred forty million, four hundred thirty-one thousand, twenty-two".