1428244047 has 6 divisors (see below), whose sum is σ = 2063019192. Its totient is φ = 952162692.

The previous prime is 1428244007. The next prime is 1428244063. The reversal of 1428244047 is 7404428241.

It is not a de Polignac number, because 1428244047 - 2²⁶ = 1361135183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428244007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79346883 + ... + 79346900.

It is an arithmetic number, because the mean of its divisors is an integer number (343836532).

Almost surely, 2^1428244047 is an apocalyptic number.

1428244047 is a deficient number, since it is larger than the sum of its proper divisors (634775145).

1428244047 is a wasteful number, since it uses less digits than its factorization.

1428244047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158693789 (or 158693786 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

The square root of 1428244047 is about 37792.1162016630. The cubic root of 1428244047 is about 1126.1618408839.

The spelling of 1428244047 in words is "one billion, four hundred twenty-eight million, two hundred forty-four thousand, forty-seven".