1429666256 has 10 divisors (see below), whose sum is σ = 2769978402. Its totient is φ = 714833120.

The previous prime is 1429666253. The next prime is 1429666261. The reversal of 1429666256 is 6526669241.

It can be written as a sum of positive squares in only one way, i.e., 1260250000 + 169416256 = 35500^2 + 13016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1429666256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429666253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44677055 + ... + 44677086.

Almost surely, 2^1429666256 is an apocalyptic number.

1429666256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1429666256 is a deficient number, since it is larger than the sum of its proper divisors (1340312146).

1429666256 is an equidigital number, since it uses as much as digits as its factorization.

1429666256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89354149 (or 89354143 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 1429666256 is about 37810.9277326013. The cubic root of 1429666256 is about 1126.5355179595.

The spelling of 1429666256 in words is "one billion, four hundred twenty-nine million, six hundred sixty-six thousand, two hundred fifty-six".