1648268429 has 8 divisors (see below), whose sum is σ = 1689174648. Its totient is φ = 1607395840.

The previous prime is 1648268393. The next prime is 1648268441. The reversal of 1648268429 is 9248628461.

It can be written as a sum of positive squares in 4 ways, for example, as 209583529 + 1438684900 = 14477^2 + 37930^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1648268429 - 2¹² = 1648264333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648268029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111839 + ... + 125715.

It is an arithmetic number, because the mean of its divisors is an integer number (211146831).

Almost surely, 2^1648268429 is an apocalyptic number.

It is an amenable number.

1648268429 is a deficient number, since it is larger than the sum of its proper divisors (40906219).

1648268429 is a wasteful number, since it uses less digits than its factorization.

1648268429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16815.

The product of its digits is 1327104, while the sum is 50.

The square root of 1648268429 is about 40598.8722626627. The cubic root of 1648268429 is about 1181.2522445428.

The spelling of 1648268429 in words is "one billion, six hundred forty-eight million, two hundred sixty-eight thousand, four hundred twenty-nine".