1420341243 has 8 divisors (see below), whose sum is σ = 1894632768. Its totient is φ = 946471944.

The previous prime is 1420341239. The next prime is 1420341281. The reversal of 1420341243 is 3421430241.

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

It is not a de Polignac number, because 1420341243 - 2² = 1420341239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420341283) 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, 97621 + ... + 111222.

It is an arithmetic number, because the mean of its divisors is an integer number (236829096).

Almost surely, 2^1420341243 is an apocalyptic number.

1420341243 is a deficient number, since it is larger than the sum of its proper divisors (474291525).

1420341243 is a wasteful number, since it uses less digits than its factorization.

1420341243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211113.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1420341243 is about 37687.4149153268. The cubic root of 1420341243 is about 1124.0808935566.

Adding to 1420341243 its reverse (3421430241), we get a palindrome (4841771484).

The spelling of 1420341243 in words is "one billion, four hundred twenty million, three hundred forty-one thousand, two hundred forty-three".