1420189341 has 4 divisors (see below), whose sum is σ = 1893585792. Its totient is φ = 946792892.

The previous prime is 1420189327. The next prime is 1420189343. The reversal of 1420189341 is 1439810241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1420189341 - 2⁷ = 1420189213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420189343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236698221 + ... + 236698226.

It is an arithmetic number, because the mean of its divisors is an integer number (473396448).

Almost surely, 2^1420189341 is an apocalyptic number.

It is an amenable number.

1420189341 is a deficient number, since it is larger than the sum of its proper divisors (473396451).

1420189341 is an equidigital number, since it uses as much as digits as its factorization.

1420189341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473396450.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1420189341 is about 37685.3995733096. The cubic root of 1420189341 is about 1124.0408195664.

Adding to 1420189341 its reverse (1439810241), we get a palindrome (2859999582).

The spelling of 1420189341 in words is "one billion, four hundred twenty million, one hundred eighty-nine thousand, three hundred forty-one".