1384398285 has 8 divisors (see below), whose sum is σ = 2215037280. Its totient is φ = 738345744.

The previous prime is 1384398277. The next prime is 1384398299. The reversal of 1384398285 is 5828934831.

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

It is not a de Polignac number, because 1384398285 - 2³ = 1384398277 is a prime.

It is a super-2 number, since 2×1384398285² = 3833117223021882450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46146595 + ... + 46146624.

It is an arithmetic number, because the mean of its divisors is an integer number (276879660).

Almost surely, 2^1384398285 is an apocalyptic number.

1384398285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1384398285 is a deficient number, since it is larger than the sum of its proper divisors (830638995).

1384398285 is an equidigital number, since it uses as much as digits as its factorization.

1384398285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92293227.

The product of its digits is 1658880, while the sum is 51.

The square root of 1384398285 is about 37207.5030739769. The cubic root of 1384398285 is about 1114.5178219051.

The spelling of 1384398285 in words is "one billion, three hundred eighty-four million, three hundred ninety-eight thousand, two hundred eighty-five".