1340042203 has 8 divisors (see below), whose sum is σ = 1411027920. Its totient is φ = 1269102240.

The previous prime is 1340042201. The next prime is 1340042233. The reversal of 1340042203 is 3022400431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340042203 - 2¹ = 1340042201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340042201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60273 + ... + 79453.

It is an arithmetic number, because the mean of its divisors is an integer number (176378490).

Almost surely, 2^1340042203 is an apocalyptic number.

1340042203 is a deficient number, since it is larger than the sum of its proper divisors (70985717).

1340042203 is a wasteful number, since it uses less digits than its factorization.

1340042203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22877.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1340042203 is about 36606.5868799592. The cubic root of 1340042203 is about 1102.4853453831.

Adding to 1340042203 its reverse (3022400431), we get a palindrome (4362442634).

The spelling of 1340042203 in words is "one billion, three hundred forty million, forty-two thousand, two hundred three".