1340322903 has 8 divisors (see below), whose sum is σ = 1985663600. Its totient is φ = 893548584.

The previous prime is 1340322901. The next prime is 1340322931. The reversal of 1340322903 is 3092230431.

It is a happy number.

1340322903 is a `hidden beast` number, since 1 + 340 + 32 + 290 + 3 = 666.

It is not a de Polignac number, because 1340322903 - 2¹ = 1340322901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 49641589 = 1340322903 / (1 + 3 + 4 + 0 + 3 + 2 + 2 + 9 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340322901) 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, 24820768 + ... + 24820821.

It is an arithmetic number, because the mean of its divisors is an integer number (248207950).

Almost surely, 2^1340322903 is an apocalyptic number.

1340322903 is a deficient number, since it is larger than the sum of its proper divisors (645340697).

1340322903 is an equidigital number, since it uses as much as digits as its factorization.

1340322903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49641598 (or 49641592 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1340322903 is about 36610.4206886509. The cubic root of 1340322903 is about 1102.5623195834.

The spelling of 1340322903 in words is "one billion, three hundred forty million, three hundred twenty-two thousand, nine hundred three".