1432256489 has 2 divisors, whose sum is σ = 1432256490. Its totient is φ = 1432256488.

The previous prime is 1432256473. The next prime is 1432256533. The reversal of 1432256489 is 9846522341.

It is an a-pointer prime, because the next prime (1432256533) can be obtained adding 1432256489 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1329842089 + 102414400 = 36467^2 + 10120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1432256489 - 2⁴ = 1432256473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1432256429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 716128244 + 716128245.

It is an arithmetic number, because the mean of its divisors is an integer number (716128245).

Almost surely, 2^1432256489 is an apocalyptic number.

It is an amenable number.

1432256489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1432256489 is an equidigital number, since it uses as much as digits as its factorization.

1432256489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 1432256489 is about 37845.1646713289. The cubic root of 1432256489 is about 1127.2154503067.

The spelling of 1432256489 in words is "one billion, four hundred thirty-two million, two hundred fifty-six thousand, four hundred eighty-nine".