1420342039 has 4 divisors (see below), whose sum is σ = 1420464024. Its totient is φ = 1420220056.

The previous prime is 1420342013. The next prime is 1420342067. The reversal of 1420342039 is 9302430241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420342039 - 2²¹ = 1418244887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420341998 and 1420342016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420342139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41437 + ... + 67510.

It is an arithmetic number, because the mean of its divisors is an integer number (355116006).

Almost surely, 2^1420342039 is an apocalyptic number.

1420342039 is a deficient number, since it is larger than the sum of its proper divisors (121985).

1420342039 is a wasteful number, since it uses less digits than its factorization.

1420342039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121984.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1420342039 is about 37687.4254758799. The cubic root of 1420342039 is about 1124.0811035456.

The spelling of 1420342039 in words is "one billion, four hundred twenty million, three hundred forty-two thousand, thirty-nine".