1428743039 has 2 divisors, whose sum is σ = 1428743040. Its totient is φ = 1428743038.

The previous prime is 1428743027. The next prime is 1428743047. The reversal of 1428743039 is 9303478241.

It is a strong prime.

It is an emirp because it is prime and its reverse (9303478241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1428743039 - 2²⁴ = 1411965823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1428742987 and 1428743005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1428743059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714371519 + 714371520.

It is an arithmetic number, because the mean of its divisors is an integer number (714371520).

Almost surely, 2^1428743039 is an apocalyptic number.

1428743039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428743039 is an equidigital number, since it uses as much as digits as its factorization.

1428743039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1428743039 is about 37798.7174253307. The cubic root of 1428743039 is about 1126.2929763436.

The spelling of 1428743039 in words is "one billion, four hundred twenty-eight million, seven hundred forty-three thousand, thirty-nine".