1400028943 has 2 divisors, whose sum is σ = 1400028944. Its totient is φ = 1400028942.

The previous prime is 1400028841. The next prime is 1400028947. The reversal of 1400028943 is 3498200041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400028943 - 2⁹ = 1400028431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400028947) 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 as a sum of consecutive naturals, namely, 700014471 + 700014472.

It is an arithmetic number, because the mean of its divisors is an integer number (700014472).

Almost surely, 2^1400028943 is an apocalyptic number.

1400028943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400028943 is an equidigital number, since it uses as much as digits as its factorization.

1400028943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1400028943 is about 37416.9606328467. The cubic root of 1400028943 is about 1118.6966511269.

Adding to 1400028943 its reverse (3498200041), we get a palindrome (4898228984).

The spelling of 1400028943 in words is "one billion, four hundred million, twenty-eight thousand, nine hundred forty-three".