1385804441 has 8 divisors (see below), whose sum is σ = 1652636544. Its totient is φ = 1136187360.

The previous prime is 1385804429. The next prime is 1385804461. The reversal of 1385804441 is 1444085831.

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

It is not a de Polignac number, because 1385804441 - 2¹⁰ = 1385803417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1385804395 and 1385804404.

It is not an unprimeable number, because it can be changed into a prime (1385804461) 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, 4303580 + ... + 4303901.

It is an arithmetic number, because the mean of its divisors is an integer number (206579568).

Almost surely, 2^1385804441 is an apocalyptic number.

It is an amenable number.

1385804441 is a deficient number, since it is larger than the sum of its proper divisors (266832103).

1385804441 is an equidigital number, since it uses as much as digits as its factorization.

1385804441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607511.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 1385804441 is about 37226.3944131043. The cubic root of 1385804441 is about 1114.8950388840.

The spelling of 1385804441 in words is "one billion, three hundred eighty-five million, eight hundred four thousand, four hundred forty-one".